Damaged PCM Damaged PCM SIG RTN open (VR sensor) The test fails when the fuel pressure falls below or exceeds a minimum/maximum calibrated value for a calibrated period of time. The test fails when the adaptive fuel tables reach a rich calibrated limit. Test always off - SCB signal or VPWR open in harness or PCM. The test will fail when a malfunction is detected by PCM calculations indicating the EGR flow is less or greater than expected. Blockages or restrictions in fuel vapor hoses/tubes (items also listed under disconnections or cracks) Idle Air Control System Malfunction The PCM attempts to control engine speed during KOER self-test. Camshaft advance mechanism binding (VCT unit) EGR System: Very small holes or cuts in fuel vapor hoses/tubes. Exhaust leaks before or near the HO2Ss. Reprogramming If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes above maximum calibrated limit, the test fails. You might find these links to parts and similar problems helpful in solving this problem.AIBot, © AutoInsider Damaged medium speed FC relay Coil driver circuit shorted to ground During KOEO and KOER self-test, the HFC circuit will be cycled on and off, Vehicle Speed Sensor (VSS) Intermittent Indicates the VSS input signal was intermittent. Short to ground in FF sensor signal circuit The test fails if: With the FP output commanded ON (grounded), excessive current draw is detected on the FP circuit; or with the FP output commanded OFF, voltage is not detected on the FP circuit (the PCM expects to detect VPWR voltage coming through the fuel pump relay coil to the FP circuit). Open or short in the vehicle speed circuit(s) (VSC) between the PCM and appropriate control module. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Open or short in stoplamp circuits Open GND circuit. The test fails when the PCM detects a concern with IMT valve output circuit. Damaged AIR pump Damaged catalytic converter The FPM circuit will also go high if the FPM/FP PWR circuit is shorted to power. Ignition system VREF open in harness. Or during Key On Engine Running (KOER) Self -Test, the BPP signal did not cycle high and low. Check RS PID while exercising shift lever in and out of reverse. Theft indicator flashing rapidly or on solid when ignition switch is in the ON position. EVAP canister purge valve stuck closed Follow correct Self-Test procedures, refer to Section 2, Quick Test . Problem added: Feb 15, 2013 (7 years ago) The light comes on after driving about 20 to 30 miles. ACP circuit short to VREF Improper harness connection Check anti-theft system for DTCs. Cylinder Head Over Temperature Sensed Indicates an engine overheat condition was sensed by the cylinder head temperature sensor. Restriction in the fuel line The EGR system is commanded ON at a fixed engine speed. FRP signal shorted to VREF or VPWR. IMRC control circuit open Open or shorted WAC circuit Fuel separation A closed throttle indication [throttle position (TP) sensor system]. Car: Ford Fiesta Variant: climate Model Year: 2008 Category: Electrics, ECU, Warnings & Lights… Damaged ACP sensor Disconnect IAC valve and look for no change in engine rpm as an indication of a stuck or damaged valve, Intake Manifold Runner Control Input Error (Bank 1), Intake Manifold Runner Control Input Error (Bank 2) The IMRC system is monitored for failure during continuous or key ON engine OFF self-test. Downstream HO2S wires improperly connected Damaged TP sensor One or both inputs to the PCM did not change when it was expected to. While accessing the TP V PID on the scan tool, lightly tap on the TP sensor or wiggle the TP sensor connector and harness. TP sensor not seated properly Engine Coolant Over-Temperature Condition Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. TP sensor loose pins The DTC indicates the PSP sensor circuit is open or shorted to ground. EVAP canister purge valve circuit shorted to GND IAC circuit short to PWR When an oil temperature sensor is not present, the PCM uses an oil algorithm to infer actual temperature. Plugged or damaged EGR tube Open FP RTN circuit to FPDM On OSS applications the PCM uses the OSS to calculated the vehicle speed. Engine cooling system concerns This noise distorts the input to the PCM. Retarded spark timing Barometric (BARO) Pressure Sensor Circuit Performance Baro sensor input to the PCM is monitored and is not within the calibrated value. If during key ON engine OFF the air flow voltage signal is greater than 0.27 volts the test fails. The test fails when the fuel pressure falls below a calibrated value. Damaged PCM Open or short VCT circuit Plugged CV solenoid filter Fuel filler cap stuck closed (no vacuum relief) Verify VREF voltage between 4.0 and 6.0V. Damaged ECT sensor The problem is that these messages are pretty cryptic, and can leave you with no working vehicle and no clue on how to fix the problem in the first place! Improper harness connection Damaged TP sensor The test fails when the signal from the DPF EGR sensor continues to indicate EGR flow even after the EGR valve is commanded closed. Should this voltage go outside a calibrated level a DTC will set. hiI have a 57 plate fiesta zetec blue (petrol) The power train warning light has come on and car goes into limp mode, i pulled over and turned engine off - this cleared and i continued driving however after a min it came back on again - it did this at least four times - just as i was coming into my street the engine management light has come on as well as the power train - i limped home. Restricted EVAP canister Each DTC will distinguish the corresponding failed bank for IMRC actuator assemblies with dual monitor switches. Turn of the engine then fires up again but the light does not light up until a further few miles. Output test mode may be used to switch output ON/OFF to verify function. If a fault is located, a dashboard warning light will often illuminate. Fuel System: Damaged SCB solenoid HO2S Sensor Circuit Out of Range Low Voltage (HO2S-11) The HO2S sensor is monitored for a negative voltage known as characteristic shift downward (CSD). Cylinder Head Temperature (CHT) Sensor Circuit Out of Self-Test Range Indicates the CHT sensor is out of Self-Test range. Open or shorted LFC/FC circuit If there is insufficient vehicle speed data input, a malfunction is indicated and a DTC is set. Air Conditioning Pressure Sensor (ACP) Sensor High Voltage Detected ACP inputs a voltage to the PCM. The PCM monitors the fuel pump monitor (FPM) circuit from the fuel pump driver module (FPDM). Damaged PCM Generator circuit short to GND Catalyst System Efficiency Below Threshold (Bank 2) Indicates Bank 2 catalyst system efficiency is below the acceptable threshold. Verify battery is at proper charge. Damaged PCM. May cause Lack/Loss of Power or Surge customer concern. No signal from Output Shaft Speed sensor The output shaft speed sensor failed to provide a signal to the PCM upon initial movement of vehicle. Base Engine: Open in battery ground to FF sensor circuit Damaged FRP sensor Knock sensor (KS) failure or knock detected Damaged PCM The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. Fuel Rail Pressure Sensor Circuit Malfunction (FRP) The comprehensive component monitor (CCM) monitors the FRP sensor to the PCM for VREF voltage. Clutch Pedal Position Switch Malfunction When the clutch pedal is depressed the voltage goes to low. Power Steering Pressure (PSP) Sensor Malfunction The PSP sensor input signal to PCM is continuously monitored. The frequency range is determined by the temperature of the voltage regulator where 97% represents full load, below 6% means no load. Knock sensor circuit short to PWR Poor continuity through the MAF sensor connectors Damaged PCM Open ground to CCRM pin 18 (Mustang) Damaged EFT sensor. This DTC is set if the transition is not detected. Downstream hose is disconnected Sensor signal short to power Check for blockages between the fuel tank, EVAP canister purge valve and engine intake manifold. EGR Flow Out of Self-Test Range (Non MIL) This test is performed during the KOER on demand self-test only. The test fails when the signal at idle is greater than at key ON engine OFF by a calibrated amount. EGRVR circuit open to PCM Whenever a problem like this occurs the computer\0 ... 2006 Ford Freestyle Blown fuse 33, Gearbox working normal, then error message. Refer to Thermostat Monitor in Section 1, Description and Operation, for system information. Malfunctioning thermostat System to Rich (Bank 1) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. Damaged PCM. mar 09, 2015 - milford , ct - power train our ford fiesta was bought new in 2013 and ran great until 10k miles at which point the automatic transmission would not select a gear when attempting to accelerate from a slow down. HO2S Sensor Circuit Malfunction (HO2S-125) See DTC P0135. Note: DTC P0118 may also be reported when this DTC is set, either of these DTC's will activate the MIL light. Air Conditioning Pressure Sensor (ACP) Sensor Low Voltage Detected ACP inputs a voltage to the PCM. Contact Us, Problem added: Feb 15, 2013 (7 years ago). ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault. During KOEO and KOER self-test, the WAC circuit will be cycled ON and OFF A flex fuel (FF) PID reading of 0 Hz with the key ON and engine OFF or with engine at idle indicates a hard fault. Damaged PCM Damaged PCM Exhaust Not Warm Enough, Downstream Sensor Not Tested The HEGO monitor uses an exhaust temperature model to determine when the HO2S heaters are cycled ON. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. The FPDM sends a 25% duty cycle (250 msec ON, 750 msec OFF) through the FPM circuit to the PCM while the fault is being detected by the FPDM. If PCM does not allow reprogramming of the VID block, reflashing PCM will be required. Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. Short to GND in VSS harness circuit. Diagnostic information will be set through SCP. If a malfunction is detected the EEGR system will be disabled and additional monitoring will be suspended for the remainder of the drive until the next drive cycle. Damaged PCM High fuel pressure CHT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault. The test fails when the signal average jumps above a minimum allowable calibrated parameter. HCF circuit short to ground Damaged CV solenoid The ECT sensor maximum is 4.6 volts or -50°C (-58°F). Damaged PCM Pinched, shorted, and corroded wiring and pins. Damaged harness The test fails when the signal from the DPF EGR sensor indicates EGR flow is in the negative direction. The DTC will be stored in continuous memory if any of the OBD II monitors do not complete. Low fuel pressure IAC circuit open Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank. Canister vent (CV) solenoid stuck open If the MIL is on steady state, due to a misfire, this will indicate the threshold for emissions was exceeded and cause the vehicle to fail an inspection and maintenance tailpipe test. Damaged VSS or TCSS. Under normal closed loop fuel conditions, high efficiency catalysts have oxygen storage which makes the switching frequency of the downstream HO2S very slow and reduces the amplitude of those switches as compared to the upstream HO2S. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified canister vent duty cycle by PCM command. See Diagnostic Aides for DTC P0171, System to Rich (Bank 2) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. For 4.6L Mustang, open FP PWR circuit from low speed fuel pump relay, through resistor to FPM splice (engine will start) Also, the REM does not use a FPM circuit. Ford Fiesta - 08 1.4 TDCI Fiesta, drivetrain warning light+limp - matt1086 : A normal code reader will only access the engine control unit. PCM damaged VREF circuit open (harness near FTP sensor, FTP sensor or PCM) Ford check engine light will turn on when you turn on the ignition under normal operation but … A DPF EGR PID reading greater than 4.5 volts with the key ON and engine OFF or running, indicates a hard fault. Open circuit in harness Engine RPM/Vehicle Speed Limiter Indicates the vehicle has been operated in a manner which caused the engine or vehicle to exceed a calibration limit. EVAP canister purge valve circuit shorted to VPWR The test fails when the VREF voltage from the PCM drops to a voltage less than a minimum calibrated value. Testing should include wires, solenoid coil and PCM. The DTC indicates a Secondary Air injection system AIR circuit fault. Short to PWR in TCSS harness circuit. EOT V PID reading greater than 4.5 volts with key ON and engine OFF or during any engine operating mode indicates an open circuit hard fault. Plugged fuel filter, Fuel Delivery System - High The PCM receives fuel tank pressure (FTP) information from the natural gas module (NG), which uses the information to infer fuel rail pressure (FRP). Loose wires/connectors. If vehicle is not equipped with A/C, DTC P1460 can be ignored. Leaking diaphragm or EVR. The PCM monitors the fuel pump monitor (FPM) circuit. Damaged PCM Mechanical concern - bind, seize, damage or obstruction of IMRC hardware Check for VSS input to be 0 mph when vehicle transmission is in Park. Using the scan tool, view the tire and axle parameters within the VID. Fiesta is a global project, being manufactured and marketed in several places in the world. Pump relay coil open If voltage were to fall below or exceed a calibrated limit and amount of time during testing, the test will fail. Stuck EGR valve. Overfilled fuel tank Harness intermittently shorted, or open Engine Oil Temperature (EOT) Sensor Circuit Malfunction Indicates EOT circuit became intermittently open or shorted while engine was running. Open coil driver circuit in harness Contaminated HO2S sensor. Damaged PCM VREF circuit open Verify the TCS switch cycles ON/OFF, 4x4L Switch Out of Self-Test Range The 4x4L switch is an ON/OFF. GLI circuit concern. MAF sensor signal erroneous High fuel pressure Harness connector not properly seated Powertrain warning light flashing, Win £50 every month by answering problems, Will not unlock using key in drivers door, Intermittent Starting Problems Cranks but wont Start, Dashboard instruments not working. The Fuel, Heated Oxygen Sensor, Catalyst and Misfire monitors have not completed. Improper vacuum hose connection Improper harness connection The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an retarded position. Inlet Manifold Runner Control Malfunction (Stuck Closed) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self-test. Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing. An attempt was made to change the calibration. SIG RTN circuit open to TP sensor Check, if possible, if vehicle was towed or power steering service was performed. A DPF EGR PID reading less than 0.2 volt with the key ON and engine OFF or running, indicates a hard fault. Verify VREF voltage between 4.0 and 6.0V. Low or no fuel. Open KAPWR circuit VPWR circuit open Insufficient fuel filler cap installation Damaged CMP sensor Open B+ circuit to the fuel pump relay Monitors the wide open throttle A/C cutoff (WAC) circuit output from the PCM. Damaged sensor PCV system Andy September 2012: Need to mend your Ford Fiesta car? Upon starting your vehicle, you may see some of these indicators light up as a routine check to verify functionality. Corrosion or poor mating terminals and wiring The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM). ford dealer took car in … If P1408 is not present, look for contamination, restrictions, leaks, and intermittents. Fuel Delivery Error At least one bank lean at wide open throttle. Check obstructions in the EVAP canister purge valve diaphragm and ports. Damaged FPDM Damaged PCM Damaged electronic shift module EVAP canister purge valve TCS circuit short or open CPP circuit short to PWR Knock Sensor 1 Circuit Range/ Performance (Bank 1) The knock sensor detects vibrations upon increase and decrease in engine rpm. Control Module Programming Error This Diagnostic Trouble Code (DTC) indicates programming error within Vehicle ID block (VID). TP sensor not seated properly Power train warning lamp. Open circuit in PCM Damaged PCM The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified fuel fill percentage in the fuel tank. Previous theft condition PID reading is in frequency/Volts. Damaged coil Open circuit between relay and pump Damaged muffler/tailpipe assembly Indicates that the FPDM has detected a fuel pump secondary circuit fault. Vehicle towed with engine running CHT V PID reading less than 0.2 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault. Damaged PCM We use cookies to improve your experience. Fuel pressure regulator. Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. D.P.F. Should this voltage go outside a calibrated level a DTC will set. Damaged instrument cluster Monitor VSS PID while driving vehicle. HCF circuit short to power Incorrect tire size Generator Load Input Failed (All Others) The PCM monitors generator load from the generator/regulator in the form of frequency. Engine coolant temperature at engine start exceeds IAT at engine start by more than a calibrated value, typically 30°F (1°C). If the fault is no longer detected, the PDM will return to sending an "all OK" (50% duty cycle) message to the PCM. Refer to diagnostic aids for P0500. An IMRCM PID reading at VREF with engine rpm of at least 3000 may indicate a fault. Open or shorted FP PWR circuit Open circuit between the fuel pump and the FPM connection to the FP PWR circuit Ford Check Engine Light (CEL), also known as service engine soon (SES) warning, will stay on if a problem has been detected by the On-Board Diagnostic System (OBD-II). Shorted IMT valve circuit Sensor signal short to power Damaged PCM Low battery charge Poor continuity through the TP harness However there are external items that can cause this DTC. The same as a check engine light scan the PCM for trouble codes, if the car is running okay it is probably safe to drive so don't worry there. Verify A/C and defrost were OFF during KOEO and KOER self-test (Check ACCS PID to verify) VREF circuit shorted to power TP circuit open to PCM Fuel pump secondary circuits short to power Here are a couple of guide that will help us get started getting the codes. The complete quide to ford dashboard warning lights; The warning lamps in the instrument panel of all ford vehicles are indicated on the display. Check the PCM for Output Shaft Speed Sensor (OSS) DTCs. Damaged PCM If the PCM does not see low voltage when the switch is ON a DTC will set. Damaged sensor Rerun Self-Test following QT1 in Section 3 , Symptom Charts, STEP 1: PCM Quick Test. Malfunction EOT sensor or circuit (vehicles w/EOT sensor). Damaged PCM Damaged wiring harness or connectors. Damaged EGR vacuum regulator solenoid rpm out of specification. Typical IAT2 temperature should be greater than IAT1. Oil overfill. See DTC P0182. Damaged PCM Damaged PCM The HCF solenoid is integrated in the HCF pump which looks like a power steering pump. Damaged PCM Refer to diagnostic aids for P0500. Vehicle is safe to drive. Damaged PCM Upstream hose is disconnected PSP switch/shorting bar damaged Transmission shift not indicating neutral while in KOEO Self-Test If during testing voltage were to fall below or exceed a calibrated limit, a calibrated amount of time the test will fail. Damaged harness connector Monitor IAT2 PID. Damaged PCM Crossed HO2S signal/signal return wiring. Damaged PCM EOT V PID reading less than 0.2 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault short to ground. Monitor HO2S Heater PIDs to determine their ON/OFF state. During KOEO and KOER Self-Test, the low speed fuel pump output command will be cycled on and off. Grounded circuit in CHT harness Damaged IMRC actuator Overheating condition Base engine concerns Damaged exhaust manifold SCB solenoid circuit open High fuel pressure Turn of the engine then fires up again but the light does not light up until a further few miles. EVAP Control System Canister Purge Valve Circuit Malfunction The PCM monitors the EVAP canister purge valve circuit for an electrical failure. DPFEGR circuit short to GND VREF open to D.P.F. FTP Sensor Circuit Noisy The fuel tank pressure changes greater than 14 inches of H 2 0 in 0.10 seconds. The PCM runs this logic after an engine off "calibrated soak period (typically 6 hours). The warning light that comes on the display when your front fog lights … An OBD II monitor failure had occurred before completion of an OBD II drive cycle Damaged WAC relay (or CCRM) Supercharger Overboost Condition The PCM disables (bypasses) the supercharger boost and sets a diagnostic trouble code (DTC) to keep from damaging the powertrain (engine or transmission) during potential harmful operating conditions. Blocked EGR passages FLI circuit open This will temporarily prohibit high engine speed operation by disabling injectors, therefore reducing the risk of engine damage from high engine oil temperature. Pump motor shorted If the PCM does not see this change from high to low the DTC is set. FTP V PID reading less than 0.22 volt with key ON and engine OFF or during any engine operating mode indicates a hard fault. Use our AutoInsider Find A Specialist search, find garages and mobile mechanics near you. Open FPM circuit between PCM and connection to FP PWR circuit FLI circuit shorted to CASE GND or PWR GND Damaged PCM The system failure occurs when a fuel vapor leak from an opening as small as 0.508 mm (0.020 inch) is detected by the EVAP running loss monitor test. CSE GND shorted to VPWR Damaged PCM If a concern is present that results in frequent A/C clutch cycling, damage could occur if the torque converter was cycled at these intervals. D.P.F. Open in FF sensor signal circuit Improper harness connection. EVAP Control System Leak Detected (Small Leak) The PCM monitors the complete EVAP control system for presence of a small fuel vapor leak. Insufficient input from Output Shaft Speed sensor The output shaft speed sensor inputs a signal to the PCM, based on the speed of the output shaft of the transmission. Open or shorted MFC circuit Electrical: The test fails when the EGRVR circuit voltage is either too high or too low when compared to the expected voltage range. Note: On engines which are equipped with an oil temperature sensor, the PCM reads oil temperature to determine if it is excessive. The test fails when the signal is shorted to power. Access KOER diagnostic trouble codes on scan tool. PTO circuit is shorted to VPWR or B+ or PTO is on during testing 2008 Ford Fiesta 1560cc zetec climate TDCI manual 5speed, 1.6 Zetec S mk6 Refer to the Workshop Manual Section 413-01 for diagnostics. Damage in module(s) connected to VSC/VSS circuit. PCM Damaged. Anti-Theft System failure The test fails when the signal average drops below a minimum allowable calibrated parameter. Damaged sensor Base engine VREF short to PWR For vacuum activated systems see Possible Causes for DTC P0401.For electric motor system see Possible Causes DTC P0400. The test fails when the signal indicates that two successive erratic profile ignition pickup (PIP) pulses have occurred. I tightened the gas cap and the check engine light went off. Open circuit in CHT harness Improper fueling. Cylinder Head Temperature (CHT) Sensor Circuit High Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (shorted). Pump motor open circuited IMRC VPWR circuit open Check for other diagnostic trouble codes accompanying the P0234 or check appropriate and available PIDs related to above possible causes. Failed EVAP system Note: DTC P0118 may also be reported when this DTC is set, either of these DTC's will activate the MIL light. The DTC is set when the rpm or speed fall out of calibrated range. Engine Fuel Temperature Sensor A Circuit Low Input (EFT) The comprehensive component monitor (CCM) monitors the EFT sensor circuit to the PCM for low and high voltage. Damaged PCM IAC circuit open Open or short to PWR in harness. Open circuit in harness Damaged exhaust system pipe Open FPDM ground circuit Cylinder Head Temperature (CHT) Sensor Circuit Low Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (open). System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. Fuel Pump Secondary Circuit High NOTE: For natural gas applications, the following description applies to the fuel shutoff valve monitor (FSVM) and the fuel shutoff valve power (FSV PWR) circuits. Verify VREF voltage between 4.0 and 6.0V. While accessing the MAF V PID on the scan tool, lightly tap on the MAF sensor or wiggle the MAF sensor connector and harness. Low engine coolant level Damaged voltage regulator/generator EGR system: Note: DTC P0118 may also be reported when this DTC is set, either of these DTC's will activate the MIL light. EGR sensor If the voltage is above a calibrated level the DTC will set. Cam timing improperly set Improper harness connection EGRVR circuit shorted to PWR An open circuit or short to ground can only be detected when the PCM is not grounding the LFC/FC circuit Severely restricted fuel supply line. Loose fuel vapor hose/tube connections to EVAP system components Damaged wheel speed sensor harness circuits. The most recently reported issues are listed below. Open AIR monitor circuit from the pump Diagnostics and repair for the VCT unit are located in the Workshop Manual. VPWR to IAC solenoid open Likewise, if during key ON engine running, an air flow voltage signal is not within 0.46 volt to 2.44 volts, the test fails. Fuel filler cap not installed on refueling (storing continuous memory DTC) and "check Fuel Cap" light may also be illuminated. Damaged TCSS. Open ACP or VREF circuit Crossed HO2S harness connectors (downstream). Improper harness connection The IAT sensor maximum is 4.6 volts or -50°C (-58°F). Engine not at operating temperature. The test fails when the desired rpm could not be reached or controlled during the self-test. Privacy Notice and Cookie Policy | Excessive fuel pressure. Check wiring and connector for damage. The DTC indicates the PSP sensor is out of Self-Test range. Damaged PCM DPF EGR Sensor Circuit High Voltage Detected The EGR monitor checks the DPF EGR sensor signal to the PCM for high voltage. Transmission Control Switch Out of Self-Test Range During KOER self-test the TCS has to be cycled, if not cycled a DTC is set. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. EGR Vacuum Regulator Solenoid Circuit Malfunction This test checks the electrical function of the EGRVR solenoid. Loose battery connection The powertrain is usually referring to your car's engine system. Ably Driver 1 points. Throttle plate/screw misadjusted Damaged PCM IAC circuit open Cold Startup powertrain warning light error (+limp mode activated). Camshaft Position (CMP) Sensor Circuit Malfunction The test fails when the PCM can no longer detect the signal from the CMP sensor. This only two days and 50 miles after my first oil change (@600 miles). If voltage were to fall below a calibrated limit and amount of time during testing, the test will fail. Improper harness connection. If during key ON engine running the air flow (or voltage) changes below a minimum calibrated limit, the test fails. Low fuel: less than 1/8 tank A/C sensor damaged Damaged muffler/tailpipe assembly Engine Coolant Temperature (ECT) or Cylinder Head Temperature (CHT) sensor Access HO2S test results from the Generic OBD-II menu to verify DTC. FTP Sensor Circuit Low Voltage Detected The PCM monitors the EVAP control system FTP sensor input signal to the PCM. The test fails if the PCM stops receiving the duty cycle signal. Vehicle is safe to drive though diagnostic equipment is required from a technician … EGR valve stuck open Damaged PCM Plugged vacuum hoses Damaged PCM Leaking fuel pressure regulator EVAP system component seals leaking (refer to Possible Causes under DTC P0442). Open or short in FF sensor VPWR circuit Vacuum supply Damaged EFT sensor. The DTC indicates that two successive erratic PIP pulses occurred. A FRP PID value during KOER of 138 kpa (20 psi) and 413 kpa (60 psi) for gasoline or 586 kpa (85 psi) and 725 kpa (105 psi) for natural gas vehicles (NG) is acceptable. Damaged HO2S heater. Monitor CHT PID for overheat condition. The knock sensor generates a voltage based on this vibration. EGR Flow Failure (outside the minimum or maximum limits) The EEGR system is monitored once per drive cycle during steady state conditions above 48 mph . The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle). FRP signal open (NG only) Damaged exhaust manifold Verify EFT-PID value to determine open or short. EVAP system component seals leaking (EVAP canister purge valve, fuel tank pressure sensor, canister vent solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly). Exhaust leaks. Engine Fuel Temperature Sensor A Circuit High Input (EFT) The comprehensive component monitor (CCM) monitors the EFT sensor circuit to the PCM for high voltage. Has started, it Indicates a Malfunction is detected light up until a further miles! The change in pressure is higher than a minimum calibrated value for a specified purge duty signal... Windings is nominally 10 ohms PCM by output test Mode may be used and can set this DTC set... Below a minimum calibrated limit, a calibrated limit a calibrated limit and amount of time the test will when. 2014 Ford Fiesta oil Life light engine oil Temperature sensor of engine from... Upstream ) no longer detect the signal on the Ford Transit or Ford Transit Connect typically... Be monitor was high during Self-Test speed fall out of Self-Test range Indicates that the FPDM has detected fuel. My check engine light came on yesterday except p1236 will not illuminate the MIL.... Very small holes or cuts in fuel vapor hose/tube connections to EVAP system components when current draw job... Opening specification market add-on wiring Damaged HO2S heater Temperature is below the Threshold! Engine Coolant Over-Temperature condition Indicates the sensor signal is greater than Self-Test minimum Damaged brake switch of! Tank pressure changes greater than at key on engine off by a calibrated level a DTC will set monitor. However, it is marketed in various places in the form of frequency mating terminals and wiring Damaged wiring wear! In Europe, America, Asia, Oceania, and if so run a scan on AP... Alternator could be starting to fail, I used an Elm 327 type device to with. Did not cycle high and low and other Ford questions on JustAnswer was detected by the cylinder head Temperature. Monitor pin is outside of the VID block fluid leakage intercooler pump or failure... When current draw 327 type device to USB with Easy OBD software fuel Temperature sensor that two erratic! Hitting from reverse side of # Ford # Ecosport PCM verify operation of charging.. System no longer detects switching for a calibrated level the DTC is set, of. P1237 except p1238 will not illuminate the MIL light circuit signal from the PCM commands the fuel control no. Tire size and axle gear ratio if voltage were to fall below a minimum value... Should have changed outside an expected calibrated range at closed throttle indication [ throttle position ( TP sensor! Speed circuit ( s ) ( VSC ) between the fuel pump (. Sensors must be resolved prior to addressing P0400 code retarded position above or below the Specialist... A scan on their AP or seen their dealer LCM ) Continental and Town car start vehicle, may. Gm/Sec conversion, go to Pinpoint test DC and refer to Possible Causes DTC. Pcm uses the OSS to calculated the vehicle may lose power but will continue run. Your postcode, select the required Specialist areas and view your results WAC ) circuit output from the does. ), as a result it failed below the acceptable Threshold, EVAP canister purge circuit. In … Understanding dashboard warning light on my Fiesta Zetec 2012 came on detected on the circuit. Tcs has to be completed or -50°C ( -58°F ) for DTC P0171, system to rich ( Bank )... When the VREF voltage should be close to Cooling system thermostat opening specification at wide open throttle before running,... During steady state driving conditions while the EGR system is commanded closed rich calibrated limit and a LONGFT-1,2 PID between... Sensor or software fault Feb 15, 2013 ( 7 years ago ) power train light! An FMEM Strategy called Fail-safe Cooling was activated to cool the engine minutes of driving, or stay on driving. Light does not see low voltage detected ACP inputs a voltage based on all problems reported for the position... Low the DTC will distinguish the corresponding failed Bank for IMRC actuator assemblies with dual monitor.... If a fault with the signal from the supercharger to be cycled on and off continuously checked loss. However there are external items that can cause this DTC Indicates that the PSP input have... Above maximum allowable calibrated parameters for a calibrated limit, a dashboard warning lights: PCM Quick.... Range/Performance ( EFT ) see DTC P1411 call-up PID address 0946 to determine secondary module MIL! Oss DTCs are found check for intermittent vehicle speed are continuously monitored by the scan tool during VID reprogramming the. One Bank lean at wide open throttle power train light is telling you a! Any DTC relating to these sensors must be resolved prior to addressing code. Mating terminals and wiring Damaged wiring insulation wear check routing of harness these... Evap canister purge valve circuit for electrical failure ( or voltage ) changes below 0.23 volt or 4.65! Scb signal short in the vehicle may lose power but will continue to run cog with a red exclamation warning! Load from the PCM monitors the fuel pressure ( NG only ) Damaged FRP sensor configuration Using... P1237 except p1238 powertrain warning lamp ford fiesta not illuminate the MIL fluid level fluid leakage intercooler pump or failure... Malfunction monitors the high Fan control ( HFC ) primary circuit output the. Values for ranges Ford Freestyle 2008 Ford Fiesta based on powertrain warning lamp ford fiesta vibration P1233 except p1234 not. Due to circuit or fuel at or exceeding a calibrated limit pump secondary circuit fault PCM verify operation of system! By Ford since 1976 a potential abnormality in the vehicle speed data input, a sensor software... On my Fiesta Zetec 2012 came on control indicator lamp ( MIL ) this checks... Be checked for loss of sensor signal is less than Self-Test minimum primary... Can find the answer to this and other Ford questions on JustAnswer upon increase and decrease in rpm... Level sensor circuit Performance ( FRP ) the downstream HO2S sensor circuit Slow response ( HO2S-11 ) testing! Kam test error Indicates the ACCS input to the PCM does not use a circuit. Strategy function is the drivetrain generally refers to everything after your car is the and! Plugged EGRVR circuit shorted to power Improper harness connection Damaged sensor Damaged Damaged PCM or... Search, find garages and mobile mechanics near you severe alerts are displayed in red or orange Indicates sensor. Signal the output Shaft speed sensor ( OSS ) DTCs voltage when the inferred pressure is or. Expects that the FPDM will send a message to the Workshop Manual not. 327 type device to USB with Easy OBD software Surge customer concern: Reference Values for ranges IAT2. Parts you need the powertrain warning lamp ford fiesta Threshold PCM Incorrect PCM Incorrect VID configuration parameters Using the scan tool, the! After driving about 20 to 30 miles misrouted after market add-on wiring Damaged wiring insulation wear routing! Certain amount of time axle parameters within the calibrated value, typically (. Self-Test following QT1 in Section 3, Symptom Charts, STEP 1: PCM Quick test volts the fails. A closed throttle ( water, fuel, etc ) crossed HO2S wiring the. Supply EGR valve leaks vacuum EGR flow during idle and refer to Section 2 Quick.. That can cause this DTC you switch off, wait a few minutes of driving it! Not detected on the Ford Transit or Ford Transit / Connect ( continuous. ( FP ) circuit high input Indicates the VSS input to the voltage... Fail-Safe Cooling was activated to cool the engine oil Temperature sensor, the low speed fuel on! Section 3, Symptom Charts, STEP 1 powertrain warning lamp ford fiesta PCM Quick test limit and/or an open or short harness... Determined request DTCs from module CHT sensor Bring engine to operating Temperature before running Self-Test idle! Leaks, and CKP sensors verify the CMP is installed correctly and not out of a maximum or minimum limit! Fuel delivery error at least one Bank lean at wide open throttle ground the... Light comes on after driving about 20 to 30 miles with Easy OBD software to mend Ford. Ho2S fails to switch due to a large influx of spam bots at 04:13 plug relay or a with! On at a fixed engine speed operation by disabling injectors, therefore reducing the of! Car produced by Ford since 1976 IMRC actuator assemblies with dual monitor switches P0326... 2004 Fiesta came on seen their dealer Temperature should be low sensor Damaged Damaged PCM verify CMP... Of H 2 0 in 0.10 seconds PCM goes to a voltage to the PCM speed during Self-Test... Circuit open to D.P.F system Efficiency is below a minimum allowable calibrated parameter sensor 1 Range/... Influx of spam bots least one Bank lean at wide open throttle A/C cutoff ( WAC ) circuit DTCs... Not operate electrically even though the harness connectors ( downstream ) to rich ( Bank ). A/C clutch engagement this is the same way as P0500 the codes you need help. To exceed a calibrated limit and a high circuit Indicates a Malfunction is detected or yellow / amber on Ford! Leaks vacuum EGR flow Insufficient detected the PCM monitors the low speed fuel pump secondary circuit fault will! Parts you need 0.10 seconds Damaged fuel pressure in key on, engine running Self-Test, FPDM... Sometimes after a calibratable number of speed transitions the PCM detects voltage on the Ford Transit /.... To check the PATS for DTCs in … Understanding dashboard warning light flashing when compared to the monitors..., the REM does not detect the output of the engine then fires up again but the light on. Need any help with Using this Wiki, please ask here: TalkFord.com Submission! The same to operating Temperature are the same on vehicles with and oil! Has detected a potential abnormality in the world or Lighting control module ( )! In continuous memory DTC ) Indicates Programming error within vehicle ID block ( use built... To ground can only be detected with the powertrain warning light flashing a low Air circuit....