Home/Land Rover/Discovery/Land Rover Discovery II (1998-2004)/Repair manual/Testing & Diagnostics/Engine Controls - Self-Diagnostics - Introduction: Overview
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Engine Controls - Self-Diagnostics - Introduction: Overview Land Rover Discovery II

Perform all steps in BASIC DIAGNOSTIC PROCEDURES article. If no fault is found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no diagnostic trouble codes or only pass codes (system functioning properly) are found during self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom.

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

Note. Not all codes apply to all models.

Code(1) Definition(2) Repair Confirmation Drive Cycle
P0101Mass Airflow (MAF) Sensor Circuit Performance Out Of Range"B"
P0102Mass Airflow (MAF) Sensor Circuit Low Input"A"
P0103Mass Airflow (MAF) Sensor Circuit High Input"A"
P0111Intake Air Temperature (IAT) Sensor Reading Not Changing As Expected"C"
P0112Intake Air Temperature (IAT) Sensor Circuit Low Range Fault"A"
P0113Intake Air Temperature (IAT) Sensor Circuit High Range Fault"A"
P0116Engine Coolant Temperature (ECT) Sensor Falling Temperature Fault"A"
P0117Engine Coolant Temperature (ECT) Sensor Circuit Low Range Fault"A"
P0118Engine Coolant Temperature (ECT) Sensor Circuit High Range Fault"A"
P0121Throttle Position (TP) Sensor Signal Inconsistent With MAF, IAC, IAT Sensors & Engine Speed Signals"B"
P0122Throttle Position (TP) Sensor Circuit Low Input"A"
P0123Throttle Position (TP) Sensor Circuit High Input"A"
P0125Engine Coolant Temperature (ECT) Sensor Excessive Time To Closed Loop/No Warm-Up Fault"B"
P0130Heated Oxygen Sensor (HO2S) Circuit Slow Response, Front Bank "A""C"
P0131Heated Oxygen Sensor (HO2S) Circuit Low Voltage, Front Bank "A""C"
P0132Heated Oxygen Sensor (HO2S) Circuit High Voltage, Front Bank "A""C"
P0133Heated Oxygen Sensor (HO2S) Circuit Slow Response, Front Bank "A""C"
P0136Heated Oxygen Sensor (HO2S) Circuit Slow Response, Front Bank "A""C"
P0137Heated Oxygen Sensor (HO2S) Circuit Low Voltage, Rear Bank "A""C"
P0138Heated Oxygen Sensor (HO2S) Circuit High Voltage, Rear Bank "A""C"
P0139Heated Oxygen Sensor (HO2S) Circuit Slow Response, Rear Bank "A""C"
P0150Heated Oxygen Sensor (HO2S) Circuit Slow Response, Rear Bank "A""C"
P0151Heated Oxygen Sensor (HO2S) Circuit Low Voltage, Front Bank "B""C"
P0152Heated Oxygen Sensor (HO2S) Circuit High Voltage, Front Bank "B""C"
P0153Heated Oxygen Sensor (HO2S) Circuit Slow Response, Front Bank "B""C"
P0156Heated Oxygen Sensor (HO2S) Circuit Slow Response, Rear Bank "B""C"
P0157Heated Oxygen Sensor (HO2S) Circuit Low Voltage, Rear Bank "B""C"
P0158Heated Oxygen Sensor (HO2S) Circuit High Voltage, Rear Bank "B""C"
P0159Heated Oxygen Sensor (HO2S) Circuit Slow Response, Rear Bank "B""C"
P0171System Too Lean Bank "A""C"
P0172System Too Rich Bank "A""C"
P0174System Too Lean Bank "B""C"
P0175System Too Rich Bank "B""C"
P0181Fuel Temperature Sensor Fault, Invalid Reading When Compared With Coolant Temperature"A"
P0182Fuel Temperature Sensor Circuit Low Range Fault"A"
P0183Fuel Temperature Sensor Circuit High Range Fault"A"
P0201Fuel Injector Circuit Fault, Cylinder No. 1"A"
P0202Fuel Injector Circuit Fault, Cylinder No. 2"A"
P0203Fuel Injector Circuit Fault, Cylinder No. 3"A"
P0204Fuel Injector Circuit Fault, Cylinder No. 4"A"
P0205Fuel Injector Circuit Fault, Cylinder No. 5"A"
P0206Fuel Injector Circuit Fault, Cylinder No. 6"A"
P0207Fuel Injector Circuit Fault, Cylinder No. 7"A"
P0208Fuel Injector Circuit Fault, Cylinder No. 8"A"
P0300Misfire On Multiple Cylinders"C"
P0301Misfire On Cylinder No. 1"C"
P0302Misfire On Cylinder No. 2"C"
P0303Misfire On Cylinder No. 3"C"
P0304Misfire On Cylinder No. 4"C"
P0305Misfire On Cylinder No. 5"C"
P0306Misfire On Cylinder No. 6"C"
P0307Misfire On Cylinder No. 7"C"
P0308Misfire On Cylinder No. 8"C"
P0326Continuous Knock on Bank "A""B"
P0327Knock Sensor Background Noise Low, Bank "A""B"
P0328Knock Sensor Background Noise High, Bank "A""B"
P0331Continuous Knock Sensor on Bank "B""B"
P0332Knock Sensor Background Noise Low, Bank "B""B"
P0333Knock Sensor Background Noise High, Bank "B""B"
P0335Crankshaft Position (CKP) Sensor Circuit Fault, No Signal"A"
P0336Crankshaft Position (CKP) Sensor Generating Poor Quality Signal"A"
P0340Camshaft Position Sensor Circuit Fault Or Signal Timing Different From Crankshaft Position Signal"A"
P0420Catalyst Efficiency Low, Bank "A""C"
P0430Catalyst Efficiency Low, Bank "B""C"
P0441EVAP Purge Control Valve Flow Fault"C"
P0442(3) EVAP Loss Control System, Small Leak"D"
P0443EVAP Purge Control Valve Circuit Open Or Short"A"
P0446(3) EVAP Canister Close Valve Malfunction"A"
P0451(3) Fuel Tank Pressure Sensor Poor Performance Fault"A"
P0452(3) Fuel Tank Pressure Sensor Low Range Fault"A"
P0453Fuel Tank Pressure Sensor High Range Fault"A"
P0460Fuel Level Sensor Circuit Fault"A"
P0461Fuel Level Sensor Not Changing As Expected"C"
P0500Vehicle Speed Sensor (VSS) Signal Out Of Range"B"
P0506Idle Air Control (IAC) Low Idle Speed"A"
P0507Idle Air Control (IAC) High Idle Speed"A"
P0560ECM Reads Low Battery Voltage At Engine Speeds Where Generator Should Be Operating"A"
P0562Battery Voltage Read By ECM Too Low To Be Possible"A"
P0563Battery Voltage Read By ECM Too High To Be Possible"A"
P0605ECM Self-Check Fault (Adaptation & Fault Record Memory Corrupted)"A"
P1137Heated Oxygen Sensor (HO2S) Problem Switching To Rich, Sensor(s) Bank "A""C"
P1138Heated Oxygen Sensor (HO2S) Problem Switching To Lean, Sensor(s) Bank "A""C"
P1139Heated Oxygen Sensor (HO2S) Switching Period Too Long, Sensor(s) Bank "A""C"
P1157Heated Oxygen Sensor (HO2S) Problem Switching Rich, Sensor(s) Bank "B""C"
P1158Heated Oxygen Sensor (HO2S) Problem Switching Lean, Sensor(s) Bank "B""C"
P1159Heated Oxygen Sensor (HO2S) Switching Period Too Long, Sensor(s) Bank "B""C"
P1171System Too Lean Bank "A" & Bank "B""C"
P1172System Too Rich Bank "A" & Bank "B""C"
P1176FMFR Correction At Maximum Positive Valve"C"
P1177FMFR Correction At Maximum Negative Valve"C"
P1178AMFR Correction At Maximum Positive Valve"C"
P1179AMFR Correction At Maximum Negative Valve"C"
P1185Heated Oxygen Sensor (HO2S) Heater Circuit Open, Front Sensors"C"
P1186Heated Oxygen Sensor (HO2S) Heater Circuit Short, Front Sensors"C"
P1187Heated Oxygen Sensor (HO2S) Heater Circuit Inferred Open Circuit, Front Sensors"C"
P1188Heated Oxygen Sensor (HO2S) Heater Circuit High Resistance, Front Sensors"C"
P1189Heated Oxygen Sensor (HO2S) Heater Circuit Inferred Low Resistance, Front Sensors"C"
P1190Heated Oxygen Sensor (HO2S) Heater Circuit Low Resistance, Front Sensors"C"
P1191Heated Oxygen Sensor (HO2S) Heater Circuit Open, Rear Sensors"C"
P1192Heated Oxygen Sensor (HO2S) Heater Circuit Short, Rear Sensors"C"
P1193Heated Oxygen Sensor (HO2S) Heater Circuit Inferred Open Circuit, Rear Sensors"C"
P1194Heated Oxygen Sensor (HO2S) Heater Circuit High Resistance, Rear Sensors"C"
P1195Heated Oxygen Sensor (HO2S) Heater Circuit Inferred Low Resistance, Rear Sensors"C"
P1196Heated Oxygen Sensor (HO2S) Heater Circuit Low Resistance, Rear Sensors"C"
P1201Fuel Injector Circuit Open Or Short, Cylinder No. 1"A"
P1202Fuel Injector Circuit Open Or Short, Cylinder No. 2"A"
P1203Fuel Injector Circuit Open Or Short, Cylinder No. 3"A"
P1204Fuel Injector Circuit Open Or Short, Cylinder No. 4"A"
P1205Fuel Injector Circuit Open Or Short, Cylinder No. 5"A"
P1206Fuel Injector Circuit Open Or Short, Cylinder No. 6"A"
P1207Fuel Injector Circuit Open Or Short, Cylinder No. 7"A"
P1208Fuel Injector Circuit Open Or Short, Cylinder No. 8"A"
P1313Misfire Likely To Cause Damage To Catalyst, Bank "A""C"
P1314Misfire Likely To Cause Damage To Catalyst, Bank "B""C"
P1315Persistent Misfires"C"
P1316Misfire Causing Excessive Emissions"A"
P1317ABS Rough Road Signal Line Permanently At Ground Or Open Circuit"A"
P1318ABS Rough Road Signal Line Permanently At Battery Voltage"A"
P1361No Ignition Coil Activation, Coil No. 1, Cylinders No. 1 & 6"A"
P1362No Ignition Coil Activation, Coil No. 2, Cylinders No. 5 & 8"A"
P1363No Ignition Coil Activation, Coil No. 3, Cylinders No. 4 & 7"A"
P1364No Ignition Coil Activation, Coil No. 4, Cylinders No. 2 & 3"A"
P1371Early Ignition Coil Activation, Coil No. 1, Cylinders No. 1 & 6"A"
P1372Early Ignition Coil Activation, Coil No. 2, Cylinders No. 5 & 8"A"
P1373Early Ignition Coil Activation, Coil No. 3, Cylinders No. 4 & 7"A"
P1374Early Ignition Coil Activation, Coil No. 4, Cylinders No. 2 & 3"A"
P1440(3) EVAP Canister Purge Control Valve Stuck Open"C"
P1447(3) EVAP Canister Close Valve Poor Performance"D"
P1448(3) EVAP Loss Control System, Major Leak"D"
P1496(3) EVAP Loss Control System, Major Leak"D"
P1508Idle Air Control (IAC) Valve Stepper Motor Circuit Open(4)
P1509Idle Air Control (IAC) Valve Stepper Motor Circuit Short(4)
P1514Neutral Drive Switch Fault, Indicates Neutral During High Load"B"
P1516Neutral Drive Switch Fault, Indicates Neutral During Gear Change"B"
P1517Neutral Drive Switch Fault, Indicates Drive During Cranking"B"
P1607MIL Circuit Open Or Shorted"A"
P1621Communication With Security ECM Has Not Happened Within Expected Time"A"
P16223 Non-Identical Or 2 Identical Wrong Security Codes Received By ECM in Sequence"A"
P1701(5) Transfer Case Has Signaled Fault Condition To ECM"A"
P1703(5) Transfer Case Link, Signal Line Permanently At Battery Voltage Or Open Circuit"A"
P1708(5) Transfer Case Link, Signal Line Permanently at Ground"A"
P1775(5) Transmission Has Signaled Fault Condition To ECM"B"
P1776(5) Transmission Ignition Retard Request Duration Fault"B"
P1777(5) Transmission Ignition Retard Request Line Fault"B"
(1) Bank "A" is the left side and bank "B" is the right side. (2) See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - GEMS article for description of specific drive cycle. (3) Advanced EVAP system. (4) Recheck using Land Rover TestBook or OBD-II compliant scan tool. (5) Range Rover.
(1)Bank "A" is the left side and bank "B" is the right side.
(2)See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - GEMS article for description of specific drive cycle.
(3)Advanced EVAP system.
(4)Recheck using Land Rover TestBook or OBD-II compliant scan tool.
(5)Range Rover.

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (GEMS)

Code(1) Definition(2) Repair Confirmation Drive Cycle
P0705FPOS, Gear Position Switch Failure While Running"B"
FPOSST, Gear Position Switch Failure While Starting"A"
P0721FRSS, Output Shaft Speed Sensor Performance"B"
P0722FFSTBR, Output Shaft Sensor, No Signal"B"
P0726FN_MOT, Engine Speed Signal Performance"B"
P0727FN_MOT, Engine Speed Signal Performance"B"
P0730FGANG1, 1st Gear Malfunction"B"
FGANG2, 2nd Gear Malfunction"B"
FGANG3, 3rd Gear Malfunction"B"
FGANG4, 4th Gear Malfunction"B"
P0740FWK, Torque Converter Clutch Malfunction"B"
P0743FMVWK, Torque Converter Solenoid Circuit Malfunction"B"
P0745FDR, Pressure Control Regulator Circuit Malfunction"B"
P0748FDR, Pressure Control Regulator Circuit Malfunction"B"
P0750FMV1, Gear Shift Solenoid "A" Malfunction (MV1)"B"
P0753FMV1, Gear Shift Solenoid "A" Malfunction (MV1)"B"
P0755FMV2, Gear Shift Solenoid "B" Malfunction (MV2)"B"
P0758FMV2, Gear Shift Solenoid "B" Malfunction (MV2)"B"
P1120FDKT, Throttle Position Malfunction"B"
P1121FDK1, Throttle Angle Malfunction"B"
P1606FTGR, Solenoid Supply Malfunction"B"
FPLUSMV, Solenoid Supply Malfunction"B"
P1607FEPROM1, TCM Data Corrupted"A"
FEPROM, TCM Data Corrupted"A"
P1608FT_T, Engine Torque Signal"B"
P1609FME, Engine Torque Reduction"B"
N/AFPRGANZ1, Mode Indication Output 1 Malfunction (MES 1)"B"
N/AFPRGANZE, Mode Indication Output 2 Malfunction (MES 2)"B"
(1) See appropriate wiring diagram in WIRING DIAGRAMS article. Specific diagnostic procedures are not available from manufacturer. (2) See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - GEMS article for description of specific drive cycle.
(1)See appropriate wiring diagram in WIRING DIAGRAMS article. Specific diagnostic procedures are not available from manufacturer.
(2)See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - GEMS article for description of specific drive cycle.

ELECTRONIC AUTOMATIC TRANSMISSION (EAT) FAULTS & "P" CODE IDENTIFICATION (GEMS)

Code(1) Definition(2) Repair Confirmation Drive Cycle
P0100Mass Or Volume Airflow Circuit Malfunction"A"
P0101Mass Or Volume Airflow Circuit Range/Performance Problem"A"
P0102Mass Or Volume Airflow Circuit Low Input"A"
P0103Mass Or Volume Airflow Circuit High Input"A"
P0111Intake Air Temperature Circuit Range/Performance Problem"B"
P0112Intake Air Temperature Circuit Low Input"B"
P0113Intake Air Temperature Circuit High Input"B"
P0115Engine Coolant Temperature Circuit Malfunction"B"
P0116Engine Coolant Temperature Circuit Range/Performance Problem"B"
P0117Engine Coolant Temperature Circuit Low Input"B"
P0118Engine Coolant Temperature Circuit High Input"B"
P0120Throttle Position (TP) Sensor/Pedal Position Switch "A" Circuit Malfunction"A"
P0122Throttle Position (TP) Sensor/Pedal Position Switch "A" Circuit Low Input"A"
P0123Throttle Position (TP) Sensor/Pedal Position Switch "A" Circuit High Input"A"
P0130Heated Oxygen Sensor (HO2S) Circuit Malfunction, (Bank 1, Sensor 1)"B"
P0131Heated Oxygen Sensor (HO2S) Circuit Low Voltage, (Bank 1, Sensor 1)"B"
P0132Heated Oxygen Sensor (HO2S) Circuit High Voltage, (Bank 1, Sensor 1)"B"
P0133Heated Oxygen Sensor (HO2S) Circuit Slow Response, (Bank 1, Sensor 1)"B"
P0134Heated Oxygen Sensor (HO2S) Circuit No Activity Detected (Bank 1, Sensor 1)"B"
P0135Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Bank 1, Sensor 1)"B"
P0136Heated Oxygen Sensor (HO2S) Circuit Malfunction (Bank 1, Sensor 2)"B"
P0137Heated Oxygen Sensor (HO2S) Circuit Low Voltage (Bank 1, Sensor 2)"B"
P0138Heated Oxygen Sensor (HO2S) Circuit High Voltage (Bank 1, Sensor 2)"B"
P0140Heated Oxygen Sensor (HO2S) Circuit No Activity Detected (Bank 1, Sensor 2)"B"
P0141Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Bank 1, Sensor 2)"C"
P0150Heated Oxygen Sensor (HO2S) Circuit Malfunction (Bank 2, Sensor 1)"B"
P0151Heated Oxygen Sensor (HO2S) Circuit Low Voltage (Bank 2, Sensor 1)"B"
P0152Heated Oxygen Sensor (HO2S) Circuit High Voltage (Bank 2, Sensor 1)"B"
P0153Heated Oxygen Sensor (HO2S) Circuit Slow Response (Bank 2, Sensor 1)"C"
P0154Heated Oxygen Sensor (HO2S) Circuit No Activity Detected (Bank 2, Sensor 1)"B"
P0155Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Bank 2, Sensor 1)"B"
P0156Heated Oxygen Sensor (HO2S) Circuit Malfunction (Bank 2, Sensor 2)"B"
P0157Heated Oxygen Sensor (HO2S) Circuit Low Voltage (Bank 2, Sensor 2)"B"
P0158Heated Oxygen Sensor (HO2S) Circuit High Voltage (Bank 2, Sensor 2)"B"
P0160Heated Oxygen Sensor (HO2S) Circuit No Activity Detected (Bank 2, Sensor 2)"B"
P0161Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Bank 2, Sensor 2)"C"
P0170Fuel Trim Malfunction (Bank 1)"C"
P0171System Too Lean (Bank 1)"C"
P0172System Too Rich (Bank 1)"C"
P0173Fuel Trim Malfunction (Bank 2)"C"
P0174System Too Lean (Bank 2)"C"
P0175System Too Rich (Bank 1)"C"
P0201Fuel Injector Circuit Malfunction, Cylinder No. 1"A"
P0202Fuel Injector Circuit Malfunction, Cylinder No. 2"A"
P0203Fuel Injector Circuit Malfunction, Cylinder No. 3"A"
P0204Fuel Injector Circuit Malfunction, Cylinder No. 4"A"
P0205Fuel Injector Circuit Malfunction, Cylinder No. 5"A"
P0206Fuel Injector Circuit Malfunction, Cylinder No. 6"A"
P0207Fuel Injector Circuit Malfunction, Cylinder No. 7"A"
P0208Fuel Injector Circuit Malfunction, Cylinder No. 8"A"
P0261Fuel Injector Circuit Low, Cylinder No. 1"A"
P0262Fuel Injector Circuit High, Cylinder No. 1"A"
P0264Fuel Injector Circuit Low, Cylinder No. 2"A"
P0265Fuel Injector Circuit High, Cylinder No. 2"A"
P0267Fuel Injector Circuit Low, Cylinder No. 3"A"
P0268Fuel Injector Circuit High, Cylinder No. 3"A"
P0270Fuel Injector Circuit Low, Cylinder No. 4"A"
P0271Fuel Injector Circuit High, Cylinder No. 4"A"
P0273Fuel Injector Circuit Low, Cylinder No. 5"A"
P0274Fuel Injector Circuit High, Cylinder No. 5"A"
P0276Fuel Injector Circuit Low, Cylinder No. 6"A"
P0277Fuel Injector Circuit High, Cylinder No. 6"A"
P0279Fuel Injector Circuit Low, Cylinder No. 7"A"
P0280Fuel Injector Circuit High, Cylinder No. 7"A"
P0282Fuel Injector Circuit Low, Cylinder No. 8"A"
P0283Fuel Injector Circuit High, Cylinder No. 8"A"
P0300Multiple Cylinders Random/Misfire Detected"C"
P0301Misfire Detected On Cylinder No. 1"C"
P0302Misfire Detected On Cylinder No. 2"C"
P0303Misfire Detected On Cylinder No. 3"C"
P0304Misfire Detected On Cylinder No. 4"C"
P0305Misfire Detected On Cylinder No. 5"C"
P0306Misfire Detected On Cylinder No. 6"C"
P0307Misfire Detected On Cylinder No. 7"C"
P0308Misfire Detected On Cylinder No. 8"C"
P0325 (3)Knock Sensor 1 Circuit Malfunction (Bank 1 Or Single Sensor)"B"
P0327 (3)Knock Sensor 1 Low Input (Bank 1 Or Single Sensor)"B"
P0328 (3)Knock Sensor 1 High Input (Bank 1 Or Single Sensor)"B"
P0330 (3)Knock Sensor 1 Circuit Malfunction (Bank 2)"B"
P0332 (3)Knock Sensor 2 Low Input (Bank 2)"B"
P0333 (3)Knock Sensor 2 High Input (Bank 2)"B"
P0335Crankshaft Position (CKP) Sensor "A" Circuit Malfunction"A"
P0336Crankshaft Position (CKP) Sensor "A" Circuit Range/Performance"A"
P0340Camshaft Position (CKP) Sensor Circuit Malfunction"A"
P0412Secondary Air Injection (SAI) Vacuum Solenoid Valve Power Supply Malfunction"A"
P0413Secondary Air Injection (SAI) Vacuum Solenoid Valve Not Connected, Open Circuit"A"
P0414Secondary Air Injection (SAI) Vacuum Solenoid Valve Circuit Short To Ground"A"
P0418Secondary Air Injection (SAI) Pump Power Supply Malfunction"A"
P0420Catalyst System Efficiency Below Threshold (Bank 1)"C"
P0430Catalyst System Efficiency Below Threshold (Bank 2)"C"
P0440EVAP Control System Malfunction"E"
P0441EVAP Control System Incorrect Purge Flow"E"
P0442EVAP Control System Leak Detected"E"
P0443EVAP Control System Purge Control Valve Circuit Malfunction"A"
P0444EVAP Control System Purge Control Valve Circuit Open"A"
P0445EVAP Control System Purge Control Valve Circuit Shorted"A"
P0446EVAP Control System Vent Control Circuit Malfunction"E"
P0447EVAP Control System Vent Control Circuit Open"E"
P0448EVAP Control System Vent Control Circuit Shorted"E"
P0449EVAP Control System Vent Valve/Solenoid Circuit Malfunction"E"
P0450EVAP Control System Pressure Sensor Malfunction"E"
P0451EVAP Control System Pressure Sensor Range/Performance"A"
P0452EVAP Control System Pressure Sensor Low Input"A"
P0453EVAP Control System Pressure Sensor High Input"A"
P0455EVAP Control System Gross Leak Detected"E"
P0460 (3)Fuel Level Sensor Circuit Malfunction"C"
P0461 (3)Fuel Level Sensor Circuit Range/Performance"C"
P0462 (3)Fuel Level Sensor Circuit Low Input"A"
P0463 (3)Fuel Level Sensor Circuit High Input"A"
P0500Vehicle Speed Sensor (VSS) Malfunction"B"
P0501Vehicle Speed Sensor (VSS) Range/Performance"B"
P0502Vehicle Speed Sensor (VSS) Circuit Low Input"B"
P0505Idle Control System Malfunction"C"
P0560 (3)System Voltage Malfunction"A"
P0561 (3)System Voltage Unstable"A"
P0562 (3)System Voltage Low"A"
P0563 (3)System Voltage High"A"
P0600Serial Communication Link Malfunction"A"
P0601Internal ECM Memory Check Sum Error"A"
P0603Internal ECM Keep Alive Memory Error"A"
P0604Internal ECM Random Access Memory (RAM) Error"A"
P0606 (3)ECM Processor Fault"B"
P0650 (3)Malfunction Indicator Light (MIL) Control Circuit Malfunction"A"
P0654 (3)Engine RPM Output Circuit Malfunction"A"
P1129Heated Oxygen Sensors (HO2Ss) Swapped Bank To Bank (Sensor 1)"A"
P1170Downstream Fuel Trim Malfunction (Bank 1)"C"
P1171System Too Lean (Bank "A")"B"
P1172System Too Rich (Banks "A" & "B")"B"
P1173Downstream Fuel Trim Malfunction (Bank 2)"C"
P1174System Too Lean (Bank "B")"B"
P1175System Too Rich (Bank "B")"B"
P1230 (3)Fuel Pump Relay Malfunction"A"
P1231 (3)Fuel Pump Relay Circuit Low"A"
P1232 (3)Fuel Pump Relay Circuit High"A"
P1300Misfire Detected, Sufficient To Cause Catalyst Converter Damage"C"
P1301Catalyst Damaging Level Of Misfire Detected On Cylinder No. 1(4)
P1302Catalyst Damaging Level Of Misfire Detected On Cylinder No. 2(4)
P1303Catalyst Damaging Level Of Misfire Detected On Cylinder No. 3(4)
P1304Catalyst Damaging Level Of Misfire Detected On Cylinder No. 4(4)
P1305Catalyst Damaging Level Of Misfire Detected On Cylinder No. 5(4)
P1306Catalyst Damaging Level Of Misfire Detected On Cylinder No. 6(4)
P1307Catalyst Damaging Level Of Misfire Detected On Cylinder No. 7(4)
P1308Catalyst Damaging Level Of Misfire Detected On Cylinder No. 8(4)
P1319 (3)Misfire Detected At Low Fuel Level"C"
P1412 (5)Secondary Air Injection (SAI) System Left Side Air Delivery Malfunction"A"
P1413 (5)Secondary Air Injection (SAI) System Left Side Air Delivery Malfunction"A"
P1414 (5)Secondary Air Injection (SAI) System Left Side Air Delivery Malfunction"A"
P1415 (5)Secondary Air Injection (SAI) System Right Side Air Delivery Malfunction"A"
P1416 (5)Secondary Air Injection (SAI) System Right Side Air Delivery Malfunction"A"
P1417 (5)Secondary Air Injection (SAI) System Right Side Air Delivery Malfunction"A"
P1509Idle Air Control (IAC) Valve Opening Stepper Motor Malfunction"A"
P1510Idle Air Control (IAC) Valve Opening Stepper Motor Circuit Malfunction"A"
P1513Idle Air Control (IAC) Valve Opening Stepper Motor Circuit Low"A"
P1514Idle Air Control (IAC) Valve Opening Stepper Motor Circuit High"A"
P1535 (3)A/C Compressor Request Malfunction"A"
P1536 (3)A/C Compressor Request Range/Performance"A"
P1537 (3)A/C Compressor Request Low Input"A"
P1538 (3)A/C Compressor Request High Input"A"
P1550Idle Air Control (IAC) Valve Closing Stepper Motor Malfunction"A"
P1551Idle Air Control (IAC) Valve Closing Stepper Motor Circuit Malfunction"A"
P1552Idle Air Control (IAC) Valve Closing Stepper Motor Circuit Low"A"
P1553Idle Air Control (IAC) Valve Closing Stepper Motor Circuit High"A"
P1590 (3)ABS - Rough Road Signal Circuit Malfunction"A"
P1591 (3)ABS - Rough Road Signal Circuit Low"A"
P1592 (3)ABS - Rough Road Signal Circuit High"A"
P1663 (3)Throttle Angle/Torque Signal Circuit Malfunction"A"
P1664 (3)Throttle Angle/Torque Signal Circuit Low"A"
P1665 (3)Throttle Angle/Torque Signal Circuit High"A"
P1666 (3)Engine Anti-Theft Signal Circuit Malfunction"A"
P1667 (3)Engine Anti-Theft Signal Circuit Low"A"
P1668 (3)Engine Anti-Theft Signal Circuit High"A"
P1669ECM Cooling Fan Circuit Malfunction"A"
P1670ECM Cooling Fan Circuit Low"A"
P1671ECM Cooling Fan Circuit High"A"
P1672 (3)Engine Anti-Theft Signal Wrong Code Received"A"
P1673 (3)Engine Anti-Theft Signal New ECM Not Configured"A"
P1674 (3)Engine Anti-Theft Signal"A"
P1700 (3)Transfer Case Indicated Range/Performance"B"
P1701Transfer Case Has Signaled Fault Condition To ECM"A"
P1702Transfer Case Signal Line Communication Frame Error"A"
P1703Transfer Case Link Signal Line Permanently High"A"
P1708Transfer Case Link Signal Line Permanently at Ground"A"
P1776 (3)Transmission Control System Torque Interface Malfunction"A"
(1) Bank 1 is the left side and bank 2 is the right side. (2) See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - BOSCH article for description of specific drive cycle. (3) MIL will not be illuminated when this DTC is detected. (4) There is no specific REPAIR CONFIRMATION DRIVE CYCLE for this DTC. (5) Secondary Air Injection (SAI) air delivery system malfunction. Air is not reaching catalytic converters caused by a disconnected or blocked SAI delivery pipe, disconnected or blocked vacuum pipe, etc.
(1)Bank 1 is the left side and bank 2 is the right side.
(2)See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - BOSCH article for description of specific drive cycle.
(3)MIL will not be illuminated when this DTC is detected.
(4)There is no specific REPAIR CONFIRMATION DRIVE CYCLE for this DTC.
(5)Secondary Air Injection (SAI) air delivery system malfunction. Air is not reaching catalytic converters caused by a disconnected or blocked SAI delivery pipe, disconnected or blocked vacuum pipe, etc.

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (BOSCH)

Code(2) Definition(3) Repair Confirmation Drive Cycle
P0705A/T Position Switch During Cranking"A"
P0705A/T Position Switch Permanent Monitoring"B"
P0721Downshift Safety Monitoring"C"
P0722Stall Speed Monitoring"A"
P0731Monitoring, 1st Gear Ratio"B"
P0732Monitoring, 2nd Gear Ratio"C"
P0733Monitoring, 3rd Gear Ratio"C"
P0734Monitoring, 4th Gear Ratio"C"
P0741Torque Convertor Lock-Up Clutch Monitoring"C"
P0743TC Solenoid Valve Lock-Up Clutch Check (Short To Battery Voltage)"B"
TC Solenoid Valve (Short To Ground Or Open Circuit)"C"
P0748Pressure Regulator Check (Short To Battery Voltage)"B"
Pressure Regulator (Short To Ground Or Open Circuit)"B"
P0753Solenoid Valve 1 Check (Short To Battery Voltage)"B"
Solenoid Valve 1 (Short To Ground Or Open Circuit)"B"
P0758Solenoid Valve 2 Check (Short To Battery Voltage)"B"
Solenoid Valve 2 (Short To Ground Or Open Circuit)"B"
P1562Battery Supply Check"A"
P1601EEPROM Checksum Fault"A"
P1602Transmission Calibration Selection Incorrect/Invalid"A"
P1606EEPROM Communication Fault"A"
Watchdog check"A"
P1612Transmission Relay Control (Relay Sticks, Open Circuit)"A"
P1613Transmission Relay Control (Relay Sticks, Short Circuit)"A"
P1705A/T Range Switch Plausibility Error"B"
P1810MES Line 1 Fault"A"
MES Line 2 Fault"A"
Controller Area Network (CAN) Level Monitoring"A"
P1841Controller Area Network (CAN) Bus Monitoring"A"
P1843Controller Area Network (CAN) Time-out Monitoring"A"
P1884Controller Area Network (CAN) Message MD_REIB Invalid (FFh)"C"
P1884Controller Area Network (CAN) Message WFPDK (Throttle Angle) Is Invalid (FFh)"C"
P1884Controller Area Network (CAN) Message T_MOT Invalid (FFh)"C"
P1884Controller Area Network (CAN) Message V3 (Road Speed) Invalid (FFh)"C"
P1884Controller Area Network (CAN) Message MD_IND Invalid, Indicated By F_TL_MES"C"
P1884Controller Area Network (CAN) Message MD_IND Invalid (FFh)"C"
P1884Controller Area Network (CAN) Message N_MOT Invalid, Indicated By F_N_MOT"C"
P1884Controller Area Network (CAN) Message T_ANS Invalid (FFh)"C"
P1884Controller Area Network (CAN) Message FHOEHE Invalid (FFh)"C"
(1) "P" codes stored in Transmission Control Module (TCM). (2) See appropriate wiring diagram in WIRING DIAGRAMS article. Specific diagnostic procedures are not available from manufacturer. (3) See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - BOSCH article for description of specific drive cycle.
(1)"P" codes stored in Transmission Control Module (TCM).
(2)See appropriate wiring diagram in WIRING DIAGRAMS article. Specific diagnostic procedures are not available from manufacturer.
(3)See REPAIR CONFIRMATION DRIVE CYCLE in SELF-DIAGNOSTICS - BOSCH article for description of specific drive cycle.

ELECTRONIC AUTOMATIC TRANSMISSION (EAT) FAULTS & "P" CODE IDENTIFICATION (BOSCH) (1)