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. Grounded circuit in CHT harness The PCM monitors the fuel pump (FP) circuit output from the PCM. To verify normal function, monitor the EVAP canister vent solenoid signal PID EVAPCV and the signal voltage (PCM control side). Monitor IAT2 PID. Ford Codes; Trouble Code Fault Location Probable Cause; P0171: Fuel trim (FT) system too lean, bank 1: Intake/exhaust leak, AIR system, MAFNAF sensor, fuel pressure/pump, injector(s), HO2S: P0300: … Reading beyond these values indicate a failure. TP circuit open to PCM Firstly, do you know what a key number looks like? This DTC is set the same way as P0500. Engine operating in high rpm range, due to improper gear selection. 159 readout fault codes on FORD FIESTA VI OBD Code B10EA, Hex Code 90EA, Decimal Code 37098 (9 times read) OBD Code C0051, Hex Code 4051, Decimal Code 16465 (8 times read) OBD Code B1408, … The test fails when the adaptive fuel tables reach a lean calibrated limit. As catalyst efficiency deteriorates, its ability to store oxygen declines and the downstream HO2S signal begins to switch more rapidly with increase amplitude, approaching the switching rate and amplitude of the upstream HO2S. Lack of HO2S-11 Switch, Sensor Indicates Lean A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. Camshaft advance mechanism binding (VCT unit) Damaged HO2S heater. Engine over temperature A fuel control HO2S PID switching across 0.45 volt from 0.2 to 0.9 volt indicates a normal switching HO2S. The test fails when the adaptive fuel tables reach a lean calibrated limit. Poor continuity through the TP harness Crossed HO2S harness connectors (upstream). FRP signal open (gasoline only) Damaged sensor Damaged IAC valve The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. DTC P1383 is a check of the VCT unit. A/C Clutch PWR circuit short to power (applications with N/C WAC relay contacts) Cost of diagnosing the B2477 FORD code Labor: 1.0 The cost of diagnosing the B2477 FORD code is 1.0 hour of labor. A/C Demand Out Of Self-Test Range Indicates the ACCS input to the PCM was high during Self-Test. Monitor IAT on scan tool, look for sudden changes in reading when harness is wiggled or sensor is tapped. Damaged PCM Damaged OSS sensor EVAP system component seals leaking (refer to Possible Causes under DTC P0442). Misfire Detection Monitor The misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred. Throttle Position (TP) Circuit High Input The TP sensor circuit is monitored by the PCM for a high TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). The codes are listed seperately based upon fuel delivery type. Open or short in harness. EVAP canister purge valve stuck closed Low fuel pressure or running out of fuel. Open in TCSS signal or TCSS signal return harness circuit. Damaged FF sensor An open circuit or short to ground can only be detected with the fuel pump commanded OFF. A TP PID (TP V PID) reading not between 13.27 and 23.52% (0.66 and 1.17 volts) in key ON engine OFF or key ON engine running indicates a hard fault. HCF circuit short to power While accessing the TP V PID on the scan tool, lightly tap on the TP sensor or wiggle the TP sensor connector and harness. Improper fueling. Damaged electronic shift module Verify EFT-PID and VREF values to determine open or short. The PCM monitors the fuel pump monitor (FPM) circuit. Typical vehicle symptoms are: Start/Stall or Crank/No Start. Inertia fuel shutoff (IFS) switch not reset or electrically open When you see P1579 Ford Fiesta engine fault code on your engine code reader this description will help you. Damaged harness connector 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. Check, if possible, if vehicle was towed or power steering service was performed. Cylinder Head Temperature (CHT) Sensor Circuit Low Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (open). Verify operation of charging system. 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. A knock sensor voltage greater than 0.5V with the key ON and engine OFF indicates a hard fault. Crossed HO2S wiring at the 104-pin harness connectors (downstream). Vehicle towed with engine running Damaged PCM Open ACP or VREF circuit FTP Sensor Circuit Low Voltage Detected The PCM monitors the EVAP control system FTP sensor input signal to the PCM. Oil contamination 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. EVAP Control System Leak Detected (No Purge Flow or Large Leak) The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. Note: On engines which are equipped with an oil temperature sensor, the PCM reads oil temperature to determine if it is excessive. Crossed intercooler coolant lines Damaged PNP or CPP switch AIR bypass solenoid leak/blocked 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). Overheating condition An OBD II monitor failure had occurred before completion of an OBD II drive cycle Cylinder Head Temperature (CHT) Sensor Circuit High Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (shorted). Low engine coolant Damaged TCS switch The FPDM sends a 75% duty cycle (750 msec ON, 250 msec OFF) through the FPM circuit to the PCM while the fault is being detected by the FPDM. Reprogramming However there are external items that can cause this DTC. Refer to our Generic OBD II code list for definitions on all other Ford diagnostic trouble codes. Leaking/contaminated fuel injectors. Damaged EFT sensor. A DPF EGR PID reading less than 0.2 volt with the key ON and engine OFF or running, indicates a hard fault. Low engine coolant level Verify VREF voltage between 4.0 and 6.0V. Open circuit in harness FTP circuit shorted to VREF or VPWR See Possible Causes for DTC P0171. Plugged EGR vacuum regulator solenoid vent Damaged instrument cluster Damaged MAF sensor Corrosion or poor mating terminals and wiring Rerun Self-Test following QT1 in Section 3 , Symptom Charts, STEP 1: PCM Quick Test. Check for proper function of stoplamps and speed control operation. In order to test the AIR pump, it must be capable of driving the HO2S lean. Damaged EGRVR solenoid Excessive resistance in circuit The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. Exhaust system too cool. Unless you’ve got been adequately trained and … Verify VREF voltage between 4.0 and 6.0V. Open VPWR The PCM logic that sets this DTC indicates that engine coolant temperature sensor (ECT or CHT) drifted higher than the nominal sensor calibration curve and could prevent one or more OBD II monitors from executing. If the PCM does not see low voltage when the switch is ON a DTC will set. If the fault is no longer detected, the PDM will return to sending an "all OK" (50% duty cycle) message to the PCM. Downstream hose is plugged (ice) Short circuit in PCM It tells crash record output circuit . But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off. Open FP RTN circuit to FPDM Damaged CV solenoid If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) reading is less than 13.27% (0.66 volt) or greater than 23.52% (1.17 volts), the test fails. If during key ON engine OFF or key ON engine running the air flow (or voltage) changes above a maximum calibrated limit, the test fails. FTP Sensor Circuit High Voltage Detected The PCM monitors the EVAP control system FTP sensor input signal to the PCM. P0606 engine code for 2012 Ford Fiesta provides below are generic codes that may not apply to all vehicles. EVAP canister purge valve circuit shorted to VPWR Improper harness connection System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. If KAPWR is interrupted to the PCM because of a battery or PCM disconnect, DTC can be generated on the first power-up. Damaged or missing fuel filler cap Vehicle Speed Sensor (VSS) Intermittent Indicates poor or noisy VSS performance. 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. RS circuit short to PWR Call-up PID address 0946 to determine secondary module requesting MIL illumination. Engine Oil Over Temperature Condition Indicates the Engine Oil Temperature Protection strategy in the PCM has been activated. During KOEO and KOER self-test, the fuel pump output command will be cycled ON and OFF. SIG RTN circuit open Open VPWR circuit to low speed FC relay Throttle Position (TP) Sensor Out of Range Low (RATCH too Low) The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input below the closed throttle position through the comprehensive component monitor (CCM). The PowerShift was an automatic … Damaged VSS Module programming error. The test fails when the signal average jumps above a minimum allowable calibrated parameter. EVAP Control System Leak Detected (Small Leak) The PCM monitors the complete EVAP control system for presence of a small fuel vapor leak. Lincoln Sentinel; Chrysler New Yorker; Gaz 210; U Codes: List of all Network codes. Keep Alive Memory Test Failure Indicates the PCM has experienced an internal memory test failure. Check for proper function of stoplamps. Ford Fiesta P2138 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. The DTC will be stored in continuous memory if any of the OBD II monitors do not complete. Air leaks after the MAF. Leaking/contaminated fuel injectors Low Fan Control (LFC) Primary Circuit Failure Monitors the low fan control (LFC) (fan control [FC] for one speed fan application) primary circuit output from the PCM. An intermittent open circuit, although possible, is unlikely Question - My 53 ford fiesta has the fault codes P0704 P0500 P2135 - 4G. They are presented somewhat in order from most to least likely to be causing the code: Bad Spark Plugs– Spark plugs are one of the most common causes of P0304. Air Conditioning Pressure Sensor (ACP) Sensor High Voltage Detected ACP inputs a voltage to the PCM. The test fails when the signal falls out of a maximum or minimum calibrated range. Knock sensor circuit short to GND ==P1414== Secondary Air Injuction System Monitor Circuit High The secondary air injection system monitor circuit is high, indicating the electrical AIR pump is on although the electrical AIR pump was commanded off by the PCM. Ford Fiesta … Damaged PCM Noisy VSS input signal from Radio Frequency Interference/ Electro-Magnetic Interference (RFI/EMI) external sources such as ignition wires, charging circuit or after market equipment. 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. Damaged FPDM TP circuit short to PWR Poor continuity through the MAF sensor connectors Open circuit between relay and pump TP sensor not seated properly Blocked fuel vapor hose between EVAP canister purge valve and FTP sensor. ACP circuit open Refer to Section 1, Powertrain Control Software , for more information on Fail-safe Cooling Strategy and cylinder head temperature sensor. VREF short to PWR Final Step: In the definitions listed below, there is a test drive recommended after you've completed any repairs to see if the condition is fixed. Engine shutdown strategy function is the same on vehicles with and without oil temperature sensors. Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have intermittent impact on the CMP signal. Faulty fuel injector driver within the PCM. EGR sensor Brake Switch Out of Self-Test Range Indicates that during Key On Engine Off (KOEO) Self-Test, BPP signal was high. Improper harness connection Intake Air Temperature Too High Indicates that IAT2 sensor has detected a potential abnormality in the intercooler system. The test fails if the PCM stops receiving the duty cycle signal. TCS circuit short or open Cylinder compression. If the PCM does not see this change from high to low the DTC is set. Damaged PCM This DTC is set when a VSS fault interferes with other OBDII tests, such as Catalyst efficiency monitor, EVAP monitor, HO2S monitor, etc. Fuel System Disabled or Offline See DTC P1233. See Diagnostic Aides for DTC P0171. Refer to possible causes for P0500. Damaged CHT sensor B1213:Less than 2 (or 3 if equipped w/Valet key) keys programmed to the system. A FRP PID value during KOER or KOEO less than 0.3 volts for gasoline or 0.5 volts for natural gas vehicles (NG) would indicate a hard fault. 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Harness circuit are performed during the OBD II monitors do not have an airbag you. Value, typically 225F ( 107C ) Damaged brake switch circuit input Malfunction the... And corroded wiring and pins modified on 3 March 2011, at 04:13 input! Fiesta owners have reported 17 problems related to check engine light turns off monitors generator Load input (... Out with the valve open, EVAPCV will indicate the EGR system is during! Ho2S test results from the supercharger to be bypassed to avoid potential engine damage flow in... Up fuel tank vacuum monitors the wide open throttle CMP sensor to monitor engine misfire and identify the specific in! Or minimum calibrated range excessive cycling circuit output from the DPF EGR sensor circuit high Indicates.
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