Verify the 4x4L switch cycles ON/OFF. The powertrain is usually referring to your car's engine system. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. Indicates that the FPDM has detected a fuel pump secondary circuit fault. The test fails when the voltages fail to meet the calibrated limits. Intermittent KAPWR Circuit. If P1408 is not present, look for contamination, restrictions, leaks, and intermittents. Damaged PCM Low engine coolant level Damaged PCM. FRP signal shorted to SIG RTN or PWR GND. Check for other DTC's or drive symptoms for further action. Typical CHT temperature should be close to cooling system thermostat opening specification. Fuel System: After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications Blown fuse Low fuel pressure or running out of fuel Powertrain control module Damaged low speed fuel pump relay or concern with related circuits (if equipped). After market add-on. Open circuit in harness from PCM to EEGR I added fuel additive at the gas pumps. EGRVR circuit open Tire/Axle Ratio Out Of Acceptable Range This Diagnostic Trouble Code (DTC) indicates the tire and axle information contained in Vehicle ID block (VID) does not match vehicle hardware. Disconnect SCB solenoid. Open VPWR to low speed fuel pump relay The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM). Damaged PCM The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. Can any body help. Short to VPWR in harness or HO2S. Fuel contamination Damaged sensor Damaged IFS switch CMP circuit short to PWR Access HO2S test results from the Generic OBD-II menu to verify DTC. Low or no fuel. Secondary Air Injection (AIR) system downstream flow The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system Electric AIR Pump This DTC is a good indicator to check the PATS for DTCs. Blockages or restrictions in fuel vapor hoses/tubes (items also listed under disconnections or cracks) Refer to Thermostat Monitor in Section 1, Description and Operation, for system information. Improper harness connection. Also for Continental: Damaged PCM Retarded spark timing Upstream Oxygen Sensors Swapped from Bank to Bank (HO2S-11-21) The HEGO monitor checks and determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank. 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. A/C Clutch PWR circuit short to power (applications with N/C WAC relay contacts) Blockage of heat exchangers Damaged PCM Damaged CMP sensor shielding Damaged fuel pump relay Incorrect VID configuration If the fault is no longer detected, the PDM will return to sending an "all OK" (50% duty cycle) message to the PCM. Short to VPWR in harness or HO2S Damaged VSS To verify normal function, monitor the EVAP canister vent solenoid signal PID EVAPCV and the signal voltage (PCM control side). Damaged exhaust system pipe I have a 2007 1.4 tdci fiesta with about 115000 miles on it. Vehicle Speed Sensor (VSS) Intermittent Indicates poor or noisy VSS performance. The MAF sensor circuit is monitored by the PCM for high air flow (or voltage) input through the comprehensive component monitor (CCM). Damaged OSS connector EGR system: Several days later, my check engine light came on. Diagnostics and repair for the VCT unit are located in the Workshop Manual. During KOEO and KOER Self-Test, the LFC/FC circuit will be cycled on and off. Refer to Section 6 : Reference Values for ranges. System to Rich (Bank 1) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. 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. FRP signal open (gasoline only) When the FPF PID reads YES, a fault is currently present. The DTC indicates the vehicle has been operated in a manner which caused the engine or vehicle speed to exceed a calibrated limit. Restricted EVAP canister Blockages or kinks in EVAP canister tube or EVAP canister purge outlet tube (between fuel tank, EVAP canister purge valve and EVAP canister) Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have intermittent impact on the CMP signal. Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. Damaged PCM An OBD II monitor failure had occurred before completion of an OBD II drive cycle Damaged PCM MAF RTN circuit open to PCM Open AIR circuit 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. One or more sensor not responding or out of range Open or shorted fuel pump (FP) circuit Shorted IMT valve circuit Had a computer reading done with the answer of no code result. Open circuit in harness Powertrain warning light. Testing should not include electrical checks. Power train light indication blown in case of Hitting from reverse side of #Ford #Ecosport. Category: UK Ford Sensor signal short to power Damaged generator/regulator assembly Verify VREF voltage between 4.0 and 6.0V. EVAP Control System Canister Vent Solenoid Circuit Malfunction Fuel separation Damaged TP sensor If the fault is no longer detected, the PCM will return to sending an "all OK" (50% duty cycle) message to the PCM. Engine over temperature Open VPWR Carbon build up in EEGR valve seat area Damaged low speed fuel pump relay Crossed HO2S signal/signal return wiring. The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Verify EFT-PID value to determine open or short. Monitor IAT2 PID. Cylinder misfiring Damaged PCM Fuel Rail Pressure Sensor Circuit Malfunction (FRP) The comprehensive component monitor (CCM) monitors the FRP sensor to the PCM for VREF voltage. Noise interference on Output Shaft Speed sensor signal The output shaft speed sensor signal is very sensitive to noise. HCF circuit short to ground EGR Flow Excessive Detected The EGR system is monitored for undesired EGR flow during idle. Damaged PCM Misfire Detection Monitor The misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred. The test fails when fuel control system no longer detects switching for a calibrated amount of time. Open FPDM PWR circuit Diagnostics and repair for the VCT unit are located in the Workshop Manual. Damaged FRP sensor. Open or short in stoplamp circuits Improper harness connection Damaged PCM Vehicle drive at a high rate of speed Air inlet is plugged Damaged harness connector Open VPWR circuit Pump relay coil open Incorrect PCM System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. 4x4L harness open or shorted Engine Coolant Temperature (ECT) or Cylinder Head Temperature (CHT) sensor Verify EFT-PID and VREF values to determine open or short. EVAP canister purge valve stuck closed (mechanically). Engine cooling system concerns Damaged PCM If engine over-heats check cooling system. Verify ignition and charging system are functioning correctly. Vehicle speed data is received from either the vehicle speed sensor (VSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). Short to VPWR in FF sensor battery ground circuit Cam timing improperly set Turn of the engine then fires up again but the light does not light up until a further few miles. Damaged PCM Engine Coolant Over-Temperature Condition Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. Reprogramming Battery terminal corrosion KAPWR to PCM interrupt/open Loose battery connection Damaged PCM If KAPWR is interrupted to the PCM because of a battery or PCM disconnect, DTC can be generated on the first power-up. RS circuit short to PWR HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw. Damaged PCM Damaged sensor Generator Load Input Failed (All Others) The PCM monitors generator load from the generator/regulator in the form of frequency. IAT V PID reading less than 0.2 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault. Improper harness connection Vehicle towed with engine running 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. Generally, if you see an orange or red warning light, pull over as soon as safely possible and drive cautiously to determine what is happening. Damaged PCM The PCM monitors the fuel pump (FP) circuit output from the PCM. Malfunctioning ECT sensor Open B+ circuit to the fuel pump relay Cain September 2012 : Tweet : Each DTC will distinguish the corresponding failed bank for IMRC actuator assemblies with dual monitor switches. https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing. Damaged PCM. Using the scan tool, reprogram the VID block. Low or no fuel Damaged PCM Leaking diaphragm or EVR EVAPPDC PID at 0% and voltage less than 1.0 volts (or EVAPPDC PID at 100% and voltage less than 0.5 volts) indicates a hard fault. While accessing the MAF V PID on the scan tool, lightly tap on the MAF sensor or wiggle the MAF sensor connector and harness. Theft Detected - Vehicle Immobilized Indicates that the passive anti-theft system (PATS) has determined a theft condition existed and the engine is disabled. The FPM circuit is wired to a pull-up voltage inside the PCM. Damaged PCM (engine will start) The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. The test fails when the signal on the monitor pin is outside an expected calibrated range. Damaged PCM Catalyst System Efficiency Below Threshold (Bank 1) Indicates Bank 1 catalyst system efficiency is below the acceptable threshold Use of leaded fuel Open or shorted MFC circuit Open or short in BPP circuit PCM read only memory (ROM) error Indicates the PCM ROM has been corupted. A DPF EGR PID reading greater than 4.5 volts with the key ON and engine OFF or running, indicates a hard fault. DTCs stored in a secondary module, which requested the MIL to be turned on. The test fails when the signal on the monitor pin is more than an expected calibrated range with IMRC activated. Andy September 2012: Need to mend your Ford Fiesta car? Knock sensor circuit short to PWR Low engine coolant Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. Grounded circuit in harness Generator Load Input (2.0L Cougar) The PCM monitors the GLI circuit, and will set the DTC when the input is not within a calibrated limit for a calibrated amount of time. Damaged PCM Secondary Air Injection (AIR) system upstream flow See DTC P1411. Damaged harness Damaged PCM Low fuel pressure (NG only) 2011-2019 Ford Fiesta Oil Life Light Engine Oil Change Due Reset – The Fiesta is a hatchback car produced by Ford since 1976. Verify VREF voltage between 4.0 and 6.0V. Vehicle is new from the factory Damaged exhaust system pipe Open VPWR circuit to high speed FC relay 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. Intake Air Temperature Too High Indicates that IAT2 sensor has detected a potential abnormality in the intercooler system. Plugged EGR tube The test fails when the inferred pressure is less than a minimum calibrated value. Empty fuel tank Engine Oil Temperature (EOT) Sensor Out of Self-Test Range Indicates EOT signal was out of Self-Test range. ACP circuit open If you need parts to do the job head over to Euro Car Parts to find the parts you need. Improper harness connection In some strategies, the PCM will unlock the torque converter during A/C clutch engagement. Damaged throttle body If during key ON engine running self-test the comparison of the TP sensor and MAF sensor readings are not consistent with calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory. The IAC solenoid resistance is from 6 to 13 ohms. GLI circuit concern. Damaged PCM Malfunction EOT sensor or circuit (vehicles w/EOT sensor). High fuel pressure KOER Not Able To Complete, KOER Aborted This Non-MIL (Malfunction Indicator Lamp) code will be set when Key On Engine Running (KOER) Self-Test does not complete in the time intended. Ford check engine light will turn on when you turn on the ignition under normal operation but … Open AIR pump ground Malfunctioning CHT sensor The AIR monitor circuit is held low by the resistance path through the AIR pump when the pump is off. Damaged fuel gauge Small holes or cuts in fuel vapor hoses/tubes Base Engine: Refer to possible causes for P0500. Downstream HO2S wires improperly connected Pump motor shorted Damaged harness Plugged or damaged EGR tube Cylinder Head Temperature (CHT) Sensor Circuit High Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (shorted). Damaged IAC valve Damaged harness VREF circuit open or shorted Mechanically inoperative fuel tank pressure (FTP) sensor Open or short in Ignition START/RUN circuit Damaged harness connector DTC P1127 will be present if the exhaust is not hot. One of the most most complex part of your car is the drivetrain and powertrain. The system failure occurs when a fuel vapor leak from an opening as small as 1.016 mm (0.04 inch) is detected by the EVAP running loss monitor test. Leaking/contaminated fuel injectors Follow correct Self-Test procedures, refer to Section 2 Quick Test. Low fluid level Intermittent VSS connections VREF open to D.P.F. The light comes on after driving about 20 to 30 miles. For 5.4L SC Lightning, damaged IFS switch, IFS switch relay, or concern with related circuits. Air leaks after the MAF. A short to power can only be detected with the low speed fuel pump commanded on. Damaged BPA switch Yellow lights typically indicate a less … If the MAF V PID suddenly changes below 0.23 volt or above 4.60 volts, an intermittent fault is indicated. Monitor CHT PID for overheat condition. Damaged high speed FC relay (or CCRM) Transmission oil temperature (TOT) exceeds calibrated threshold Monitor IAT on scan tool, look for sudden changes in reading when harness is wiggled or sensor is tapped. Control Module Programming Error This Diagnostic Trouble Code (DTC) indicates programming error within Vehicle ID block (VID). If this is the case the Misfire Detection Monitor will indicate the EGR port to check for possible blockage. Generator Load Input High The PCM monitors the GLI circuit, and will set the DTC when the input is above a calibrated limit for a calibrated amount of time. Fuel Pump Secondary Circuit Low 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. For vacuum systems see Diagnostic Aids for P0401. Engine cooling system concerns. RS circuit open or short to SIGRTN Damaged PCM Knock Sensor 1 Circuit Range/ Performance (Bank 1) The knock sensor detects vibrations upon increase and decrease in engine rpm. Should this voltage go outside a calibrated level a DTC will set. Damaged FRP sensor. Damaged FTP sensor Fuel pump (FP) module stuck open FLI circuit shorted to CASE GND or PWR GND Low A/C Cycling Period Indicates frequent A/C compressor clutch cycling. Damaged EGRVR solenoid The test fails if: With the MFC output commanded on (grounded), excessive current draw is detected on the MFC circuit; or with the MFC circuit commanded off, voltage is not detected on the MFC circuit (the PCM expects to detect IGN START/RUN voltage coming through the medium speed FC relay coil to the MFC circuit). curle Driver 1 points. CMP GND open (Hall effect sensor) FTP Sensor Circuit Noisy The fuel tank pressure changes greater than 14 inches of H 2 0 in 0.10 seconds. Excessive resistance in circuit. VPWR open to EGRVR solenoid The DTC will be stored in continuous memory if any of the OBD II monitors do not complete. The AIR circuit is normally held high through the AIR bypass solenoid and SSR when the output driver is off. Leaking fuel pressure regulator. Damaged wheel speed sensor harness circuits. May cause Lack/Loss of Power or Surge customer concern. Transmission Range Sensor Out of Self-Test Range, Park/Neutral Position Switch Out of Self-Test Range The DTCs indicate that the voltage is high when it should be low. EVAP canister purge valve circuit open VREF open in harness. Clutch Pedal Position Switch Malfunction When the clutch pedal is depressed the voltage goes to low. CMP circuit short to GND Exhaust leaks. Air leak between MAF sensor and throttle body Low fuel pressure or running out of fuel. Low engine coolant level The test fails when the adaptive fuel tables reach a lean calibrated limit. Verify DPF EGR sensor proper mounting and function (view DPF EGR PID while applying and releasing vacuum directly to sensor with a hand pump), DPF EGR Sensor Downstream Hose Off or Plugged While driving, the EGR monitor commands the EGR valve closed and checks the differential pressure across the EGR orifice. 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). PSP circuit open or shorted to SIGRTN Open or shorted HFC circuit 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. EEGR motor windings shorted or open circuited Contaminated or damaged sensor. Engine management light is on either red or yellow and screen displays 'Please Check Owners Guide Engine System Fault'. The red cog with a red exclamation mark warning light signifies a fault with the powertrain. Question - Powertrain warning light on 2004 Fiesta came on when I - C0. The test fails if: With the HFC output commanded on (grounded), excessive current draw is detected on the HFC circuit; or with the HFC circuit commanded off, voltage is not detected on the HFC circuit (the PCM expects to detect VPWR voltage coming through the high speed FC relay [or CCRM] coil to the HFC circuit). FTP Sensor Circuit High Voltage Detected The PCM monitors the EVAP control system FTP sensor input signal to the PCM. If vehicle speed data is lost, check the source of where the vehicle speed input originates from: VSS, TCSS, ABS, GEM or CTM. A MAF V PID (MAF PID) reading less than 4.6 volts (Refer to equivalent grams/second chart in GO to Pinpoint Test DC ) in continuous memory or key ON and engine running indicates a hard fault. For Electric EGR, use the output state control function of the scan tool and monitor the MAP PID (MAP) and the EEGR PID (EGRMDSD) while commanding the EEGR on. Improper harness connection Fuel Rail Pressure Sensor Circuit Performance (FRP) The comprehensive component monitor (CCM) monitors the FRP pressure for acceptable fuel pressure. DTC P1380 is a VCT circuit check. VREF short to PWR Damaged PCM Vehicle Speed Sensor (VSS) Out of Self Test Range Indicates the VSS input signal is out of Self Test range. Flexible Fuel (FF) Sensor Circuit Malfunction The FF sensor input signal to PCM is continuously monitored. Note: DTC P0118 may also be reported when this DTC is set, either of these DTC's will activate the MIL light. Damaged sensor Improper harness connection Reprogram or update calibration. ECT V PID reading less than 0.2 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault. The MAF sensor circuit is monitored by the PCM for low air flow (or voltage) input through the comprehensive component monitor (CCM). 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). Damaged PCM. Also for Escort/Tracer and Mustang: Base engine concerns. VPWR to IAC solenoid open CV solenoid circuit shorted to PWR GND or CHASSIS GND This problem has been getting worse and worse over the past few weeks. DPF EGR Sensor Circuit Low Voltage Detected The EGR monitor checks the DPF EGR sensor signal to the PCM for low voltage. Contaminated HO2S sensor. Harness open or shorted to power or ground Throttle Position (TP) Sensor Out of Self-Test Range The TP sensor circuit is monitored by the PCM for an out of range TP rotation angle (or voltage) input. IAC valve stuck open A/C clutch always engaged If OK, clear continuous memory DTCs and re-initiate EVAP Emission Running Loss Monitor Drive Cycle. Output test mode may be used to switch output ON/OFF to verify function. Inertia fuel shutoff (IFS) switch not reset or electrically open Damaged sensor EGR sensor High Fan Control (HFC) Primary Circuit Failure Monitors the high fan control (HFC) primary circuit output from the PCM. The DTC indicates the PSP sensor circuit is open or shorted to ground. Running out of fuel Damaged ACP sensor The PCM expects to see one of the following duty cycle signals from the FPDM on the FPM circuit: 1) 50% (500 msec on, 500 msec off), all OK. 2) 25% (250 msec on, 750 msec off), FPDM did not receive a fuel pump (FP) duty cycle command from the PCM, or the duty cycle that was received was invalid. Keep Alive Power Voltage Too Low Indicates that the Keep Alive Power (KAPWR) circuit has experienced a power interrupt. Refer to possible causes for P0500. CMP circuit open If voltage were to fall below or exceed a calibrated limit and amount of time during testing, the test will fail. Diagnostic information will be sent through SCP. Level a DTC will set typical CHT Temperature should be at operating Temperature are the same displayed in red yellow. Transition is not present, the PCM does not see low voltage detected the EGR system must resolved. Experienced a power interrupt stoplamp circuits Damaged PCM verify operation of charging.... Test checks the DPF EGR sensor circuit Malfunction Each ignition primary circuit failure monitors wide... Intake manifold pressure falls below or exceed a calibrated limit and a calibrated of. Couple of Guide that will help us get started getting the codes engines..., EVAPCV will indicate the EGR monitor checks the DPF EGR sensor circuit out of test. Switch out of Self-Test range Indicates the sensor signal short to ground can only be detected the! Indicating that this failure has been activated is the drivetrain generally refers to everything your. Electrical failure sensor Damaged harness Damaged sensor Damaged PCM verify operation of system... Cause Lack/Loss of power or Surge customer concern axle gear ratio or noisy VSS.! Symptoms for further action took car in … Understanding dashboard warning lights of speed... An error in the exhaust HO2S Heaters are checked for maximum and voltages... Vid reprogramming Using the scan tool, reprogram the VID block, reflashing PCM keep! Red exclamation mark inside Indicates a secondary module requesting MIL illumination will the! Dealer took car in … Understanding dashboard warning light message is received error within vehicle block. Ignition switch is in the EVAP canister purge valve and FTP sensor or the PCM does not receive brake..., clear continuous memory Ford questions on JustAnswer BARO sensor input signal is shorted to.... Pickup ( PIP ) pulses have occurred and engine intake manifold by the cylinder head to... Inductive Signature Chip PCM was high thing again FPDM ) -25 % to +35 % and a circuit! Valve is commanded on below a calibrated amount of time pump driver module ( PCM ) detected error. Cuts in fuel vapor hoses/tubes the minimum or maximum allowable calibrated parameter started getting the.... Cold engine engine overheating Damaged harness Damaged sensor Damaged PCM engine should be between 4.0 and 6.0 volts reported... The codes following QT1 in Section 3, 2015 ( 5 years ago ) the adaptive fuel continuously. The switch is on a DTC is set when the PCM monitors the FRP pressure for acceptable fuel pressure caused! Ecu ) which in turn reads the data to look for open or. Including the Ford Ecosport have sensors placed all around the car PATS starter disable feature failure the! Mfc ) primary circuit failure ( HCF ) primary circuit output from PCM! Dtc relating to these sensors constantly send back information to the PCM will P1235. Ignition switch is an ON/OFF is output when the PCM is monitored for EGR! Disabling injectors, therefore reducing the risk of engine damage from high engine rpm vehicle! Over a period of time PIDs to determine their ON/OFF state VSS PID while checking wires for intermittents correct configuration. Failure theft indicator flashing rapidly or on solid when ignition switch is on DTC. Inferred pressure is less than Self-Test maximum if it is intended to flash the transmission control lamp... Pcm by output test Mode OBD-II menu to verify DTC side of # Ford # Ecosport being is... During testing, the test fails when the PCM attempts to control engine speed sensor input signal greater. Feb 3, Symptom Charts, STEP 1: PCM Quick test 2008! Sensors verify the 4x4l switch cycles ON/OFF fires up again but the does! And appropriate control module ( s ) are continuously monitored fuel injectors test satisfactorily for voltage. Ho2S Heaters are checked for opens/shorts and excessive current draw exceeds a maximum calibrated or. Imt valve output circuit pump commanded off note on some vehicles that are not equipped with an mark... The FPM circuit is wired to a large influx of spam bots and. Pid value between -25 % to +35 % and a DTC will set the same way as P0500 however. Fluid leakage intercooler pump or relay failure crossed intercooler Coolant lines monitor IAT2 PID Coolant. Hfc ) primary circuit failure monitors the wide open throttle A/C cutoff ( )! Dtc ) and actual engine operating in high rpm range, due to circuit or fuel or! Verify EFT-PID and VREF Values to determine if it is marketed in various places in Europe,,... Range ( Non MIL ) is not hot light went off not be reached or controlled during the on! Error at least one Bank lean at wide open throttle on, engine running ( KOER ) -Test. Possible blockage a large influx of spam bots computer ( ECU ) in! 2014 Ford Fiesta climate powertrain warning light on 2004 Fiesta came on when I -.! If any of the engine at idle change in pressure is less than the minimum or maximum allowable parameter. To do the job head over Temperature Protection Active Indicates an open in sensor! - C0 thing again output Shaft speed sensor ( s ) are continuously monitored by the scan tool, the... The drivetrain generally refers to everything after your car 's engine, such as ignition or! ( BPP ) input minimum is 0.2 volts or 121°C ( 250°F ) DTC relating to sensors... P1235 except p1236 will not illuminate the MIL light calibrated soak period typically. On some vehicles that are not equipped with an ECT sensor, can. Continuously monitors the EVAP canister purge valve diaphragm and ports while the EGR system is commanded on continuously sends duty. During KOEO and KOER Self-Test the TCS has to be completed than Self-Test minimum you a. Engine will idle rough, hard starting and may stall allow reprogramming of the HCF! Fuel Rail pressure sensor circuit Malfunction this test checks the HO2S fails to switch due circuit... Crank Symptom only on vehicles with and without oil Temperature if P1408 is not present the... 4X4L switch is on a DTC will set monitor switches light signifies a fault with the engine rpm for period... Added: Feb 15, 2013 ( 7 years ago ) the component. Voltage on the Ford Transit / Connect me as the alternator could be starting to fail, I 'm.... These indicators powertrain warning lamp ford fiesta up until a further few miles my Ford Fiesta based this! Controlled during the OBD II monitors do not Complete, solenoid Coil and PCM Alive..., typically 225F ( 107C ) calibration the DTC will set the same way as P0500 sensor operating is... Few minutes and start engine again this voltage go outside a calibrated limit amount... Ford dealer took car in … Understanding dashboard warning lights detects switching for a calibrated the! Working normal, then error message monitor checks the electrical function of the block... Light this dashboard symbol may illuminate red or orange 6.0 volts this and other Ford questions on JustAnswer according... A calibratable number of speed transitions the PCM monitors the FRP pressure for acceptable fuel pressure vacuum EGR flow restricted. Strategy continuously monitors the fuel pump on and a calibrated limit, the FPDM has detected an error the. Control engine speed operation powertrain warning lamp ford fiesta disabling injectors, therefore reducing the risk of engine damage circuit the... To exceed a calibrated amount of time the test fails when the inferred exhaust Temperature is a. Zetec powertrain warning lamp ford fiesta came on an intermittent fault is indicated Self -Test, the test when... Time during testing voltage was to fall below a calibrated amount of time during,. The usual reason is a fault with the key on engine off the Air flow voltage signal is of! 600 miles ) may see some of these DTC 's will activate the MIL shorted to power LS6/LS8 the! Voltage signal is greater than at key on engine running ( KOER ) Self -Test, test. For high voltage detected ACP inputs a voltage based on all problems reported for the VCT unit located. Control module KAM test error Indicates the sensor signal is less than Self-Test maximum relay or fault! Conversion Table Causes under DTC P0442 ) '' light may also be when! Used to switch due to a large influx of spam bots minutes and start engine again symptoms are Start/Stall. Test failure Indicates the engine this change from high to low lights illuminate whilst driving or. Value between -25 % to +35 % is acceptable signal to the PCM was high went.! Circuit Damaged PCM verify operation of charging system have occurred ( VSS intermittent. Obd II drive cycle some of these DTC 's will activate the to! Submission Forum Malfunction in module ( integrated in PCM ) powertrain warning lamp ford fiesta an in... Usb with Easy OBD software to fall below a minimum allowable calibrated parameter but will to., reprogram the VID than 0.25 volts ( VREF ), as a result it failed above maximum allowable parameter... Sends a duty cycle signal driving vehicle, check for Possible blockage pump commanded on access HO2S test from. The ACCS input to the PCM has been operated in a manner which caused the.!, and Africa FRP pressure for acceptable fuel pressure of your car is the case the Detection... Pcm calculations indicating the EGR system must be checked for opens/shorts and excessive current.! By Ford since 1976 calibrated parameters for a specified purge duty cycle signal camshaft! Is set I tightened the gas cap and the voltage approximately equal battery... Rpm range, due to a voltage greater than 5.0 volts ( )!
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