TSB : Electronic Engine Controls - 4.2L

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Expand All (for easy ctrl-f) Collapse All Electronic Engine Controls (4.2L) Specifications Electronic Engine Controls - Description & Operation Electronic Engine Controls - Diagnostic Procedures Notes Pinpoint Test A: DTC P0116, P0117, P0118, P0125. ECT SENSOR. Pinpoint Test B: DTC P0335, P0336, P1245, P1246. CRANKSHAFT POSITION (CKP) SENSOR. Pinpoint Test C: DTC P0340, P0341: BANK 1 CAMSHAFT POSITION (CMP) SENSOR Pinpoint Test D: DTC P0345, P0346, P1340, P1341: BANK 2 CAMSHAFT POSITION (CMP) SENSOR Pinpoint Test E: DTC P0031, P0032. BANK 1 HO2S HEATER. Pinpoint Test F: DTC P0181, P0182, P0183. FUEL TEMPERATURE SENSOR. Pinpoint Test G: DTC P0327, P0328, P1648. KNOCK SENSOR (KS) RIGHT-HAND Pinpoint Test G: DTC P0332, P0333, P1648. KNOCK SENSOR (KS) LEFT-HAND Pinpoint Test H: DTC P0196, P0197, P0198. OIL TEMPERATURE SENSOR. Pinpoint Test I: DTC P0131, P0132, P0133, P1646. BANK 1 HO2S. Pinpoint Test J: DTC P0037, P0038, P0137, P0138, P0140. BANK 1 CATALYST MONITOR. Pinpoint Test K: DTC P0051, P0052, P0151, P0152, P0153, P1647. BANK 2 HO2S. Pinpoint Test L: DTC P0057, P0058, P0157, P0158, P0160. BANK 2 CATALYST MONITOR. Pinpoint Test M: DTC P0101, P0102, P0103, P1104. MAF SENSOR. Pinpoint Test N: P0111, P0112, P0113. IAT SENSOR. Pinpoint Test O: DTC P0051, P0052. BANK 2 HO2S HEATER. Pinpoint Test P: DTC P1606. ECM RELAY. Pinpoint Test Q: P0105,P1107, P1108. MAP SENSOR. Pinpoint Test R: P0010, P1384. VVT BANK 1. Pinpoint Test S: P0020, P1396. VVT BANK 2. Pinpoint Test U: P0532, AIR CONDITIONING REFRIGERANT PRESSURE SENSOR CIRCUIT LOW INPUT Pinpoint Test V: P0533, AIR CONDITIONING REFRIGERANT PRESSURE SENSOR CIRCUIT HIGH INPUT Pinpoint Test Z: P1582. FLIGHT RECORDER DATA STORED. Pinpoint Test AA: P1240, P1241, P1242. SENSOR POWER SUPPLY. Pinpoint Test AB: P1243. SENSOR GROUND CIRCUITS. Pinpoint Test AE: P0480. RADIATOR COOLING FAN MODULE DRIVE. Pinpoint Test AF: P0646, P0647. AIR CONDITIONING CLUTCH RELAY DRIVE. Pinpoint Test AG: P1516, P1517. P/N SWITCH STARTING/DRIVING MALFUNCTIONS. Pinpoint Test AC: P1245; P1246. IGNITION SWITCH CRANK SIGNAL Pinpoint Test AD: P0096,P0097, P0098 SUPERCHARGER INTAKE AIR TEMPERATURE SENSOR Pinpoint Test AE: P1410 SUPERCHARGER AIR CLEANER ADDITIONAL AIR INLET ACTUATOR Electronic Engine Controls - Diagnostic Procedures (VIN Range: N52207->N99999) Overview Inspection and Verification Symptom Chart DTC index Pinpoint Tests Pinpoint Test A: MASS AIR FLOW (MAF) SENSOR CIRCUIT RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test B: MASS AIR FLOW (MAF) SENSOR GROUND MALFUNCTION Pinpoint Test C: INTAKE AIR TEMPERATURE (IAT) SENSOR CIRCUIT RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test D: ENGINE COOLANT TEMPERATURE (ECT) SENSOR CIRCUIT RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test E: THROTTLE POSITION (TP) SENSOR RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test F: THROTTLE POSITION (TP) SENSOR CIRCUIT TP2 HIGH/LOW VOLTAGE Pinpoint Test G: RIGHT-HAND H02S SENSING CIRCUIT LOW/HIGH CURRENT, SLOW RESPONSE, ECM CONTROL MALFUNCTION Pinpoint Test H: RIGHT-HAND H02S HEATER CONTROL CIRCUIT HIGH/LOW CURRENT Pinpoint Test I: RIGHT-HAND CATALYST MONITOR SENSOR SENSING CIRCUIT LOW/HIGH VOLTAGE, NO ACTIVITY Pinpoint Test J: RIGHT-HAND CATALYST MONITOR SENSOR HEATER CONTROL CIRCUIT LOW/HIGH RESISTANCE Pinpoint Test K: LEFT-HAND H02S SENSING CIRCUIT LOW/HIGH CURRENT, SLOW RESPONSE, ECM CONTROL MALFUNCTION Pinpoint Test L: LEFT-HAND H02S HEATER CONTROL CIRCUIT HIGH/LOW CURRENT Pinpoint Test M: LEFT-HAND CATALYST MONITOR SENSOR SENSING CIRCUIT LOW/HIGH VOLTAGE, NO ACTIVITY Pinpoint Test N: LEFT-HAND CATALYST MONITOR SENSOR HEATER CONTROL CIRCUIT LOW/HIGH RESISTANCE Pinpoint Test O: ENGINE OIL TEMPERATURE (EOT) SENSOR RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test P: RIGHT-HAND KNOCK SENSOR (KS) HIGH/LOW VOLTAGE Pinpoint Test Q: LEFT-HAND KNOCK SENSOR (KS) HIGH/LOW VOLTAGE Pinpoint Test R: CRANKSHAFT POSITION (CKP) SENSOR CIRCUIT RANGE/PERFORMANCE, CIRCUIT MALFUNCTION Pinpoint Test S: RIGHT-HAND CAMSHAFT POSITION (CMP) SENSOR CIRCUIT RANGE/PERFORMANCE, CIRCUIT MALFUNCTION Pinpoint Test T: LEFT-HAND CAMSHAFT POSITION (CMP) SENSOR CIRCUIT MALFUNCTION RANGE/PERFORMANCE Pinpoint Test U: RADIATOR COOLING FAN MODULE DRIVE CIRCUIT MALFUNCTION Pinpoint Test V: BATTERY POWER SUPPLY VOLTAGE MALFUNCTION Pinpoint Test W: ACCELERATOR PEDAL POSITION (APP) SENSOR SENSING CIRCUIT 1 HIGH/LOW VOLTAGE Pinpoint Test X: ACCELERATOR PEDAL POSITION (APP) SENSOR SENSING CIRCUIT 2 HIGH/LOW VOLTAGE Pinpoint Test Y: THROTTLE MOTOR CONTROL CIRCUIT MALFUNCTION Pinpoint Test Z: SENSOR SUPPLY VOLTAGE MALFUNCTION, HIGH/LOW VOLTAGE Pinpoint Test AA: SENSOR GROUND CIRCUITS OPEN CIRCUIT Pinpoint Test AB: STARTER RELAY SIGNAL Pinpoint Test AC: RIGHT-HAND VARIABLE CAMSHAFT TIMING (VCT) OIL CONTROL SOLENOID MALFUNCTION, CIRCUIT MALFUNCTION Pinpoint Test AD: LEFT-HAND VARIABLE CAMSHAFT TIMING (VCT) OIL CONTROL SOLENOID MALFUNCTION, CIRCUIT MALFUNCTION Pinpoint Test AE: EMS CONTROL RELAY MALFUNCTION Pinpoint Test AF: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR SENSING CIRCUIT MALFUNCTION, HIGH/LOW VOLTAGE Pinpoint Test AG: ENGINE FUEL TEMPERATURE (EFT) SENSOR RANGE/PERFORMANCE, LOW/HIGH VOLTAGE Pinpoint Test AH: AIR CONDITIONING (A/C) PRESSURE SENSOR CIRCUIT LOW/HIGH VOLTAGE Pinpoint Test AI: MANIFOLD ABSOLUTE PRESSURE SENSOR/TEMPERATURE (MAPT) SENSOR, INTAKE AIR TEMPERATURE (IAT2) SENSING CIRCUIT Pinpoint Test AJ: AIR CLEANER SOLENOID VALVE DRIVE CIRCUIT MALFUNCTION Pinpoint Test AK: CHECK THE AUXILIARY COOLANT PUMP FUNCTION Pinpoint Test AL: FUEL RAIL PRESSURE (FRP) SENSOR CIRCUIT Pinpoint Test AM: MANIFOLD ABSOLUTE PRESSURE/TEMPERATURE (MAPT) SENSOR PRESSURE SENSING CIRCUIT Pinpoint Test AN: BRAKE SWITCH Pinpoint Test AO: AIR CONDITIONING (A/C) COMPRESSOR CLUTCH CONTROL CIRCUIT Electronic Engine Controls - Diagnostic Procedures (VIN Range: N80181->R99999) Inspection and Verification Symptom Chart DTC index Pinpoint Tests Pinpoint Test A: MASS AIR FLOW (MAF) SENSOR CIRCUIT RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test B: MASS AIR FLOW (MAF) SENSOR GROUND MALFUNCTION Pinpoint Test C: INTAKE AIR TEMPERATURE (IAT) SENSOR CIRCUIT RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test D: ENGINE COOLANT TEMPERATURE (ECT) SENSOR CIRCUIT RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test E: THROTTLE POSITION (TP) SENSOR RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test F: THROTTLE POSITION (TP) SENSOR CIRCUIT TP2 HIGH/LOW VOLTAGE Pinpoint Test G: RIGHT-HAND H02S SENSING CIRCUIT LOW/HIGH CURRENT, SLOW RESPONSE, ECM CONTROL MALFUNCTION Pinpoint Test H: RIGHT-HAND H02S HEATER CONTROL CIRCUIT HIGH/LOW CURRENT Pinpoint Test I: RIGHT-HAND CATALYST MONITOR SENSOR SENSING CIRCUIT LOW/HIGH VOLTAGE, NO ACTIVITY Pinpoint Test J: RIGHT-HAND CATALYST MONITOR SENSOR HEATER CONTROL CIRCUIT LOW/HIGH RESISTANCE Pinpoint Test K: LEFT-HAND H02S SENSING CIRCUIT LOW/HIGH CURRENT, SLOW RESPONSE, ECM CONTROL MALFUNCTION Pinpoint Test L: LEFT-HAND H02S HEATER CONTROL CIRCUIT HIGH/LOW CURRENT Pinpoint Test M: LEFT-HAND CATALYST MONITOR SENSOR SENSING CIRCUIT LOW/HIGH VOLTAGE, NO ACTIVITY Pinpoint Test N: LEFT-HAND CATALYST MONITOR SENSOR HEATER CONTROL CIRCUIT LOW/HIGH RESISTANCE Pinpoint Test O: ENGINE OIL TEMPERATURE (EOT) SENSOR RANGE/PERFORMANCE, HIGH/LOW VOLTAGE Pinpoint Test P: RIGHT-HAND KNOCK SENSOR (KS) HIGH/LOW VOLTAGE Pinpoint Test Q: LEFT-HAND KNOCK SENSOR (KS) HIGH/LOW VOLTAGE Pinpoint Test R: CRANKSHAFT POSITION (CKP) SENSOR CIRCUIT RANGE/PERFORMANCE, CIRCUIT MALFUNCTION Pinpoint Test S: RIGHT-HAND CAMSHAFT POSITION (CMP) SENSOR CIRCUIT RANGE/PERFORMANCE, CIRCUIT MALFUNCTION Pinpoint Test T: LEFT-HAND CAMSHAFT POSITION (CMP) SENSOR CIRCUIT MALFUNCTION RANGE/PERFORMANCE Pinpoint Test U: RADIATOR COOLING FAN MODULE DRIVE CIRCUIT MALFUNCTION Pinpoint Test V: BATTERY POWER SUPPLY VOLTAGE MALFUNCTION Pinpoint Test W: ACCELERATOR PEDAL POSITION (APP) SENSOR SENSING CIRCUIT 1 HIGH/LOW VOLTAGE Pinpoint Test X: ACCELERATOR PEDAL POSITION (APP) SENSOR SENSING CIRCUIT 2 HIGH/LOW VOLTAGE Pinpoint Test Y: THROTTLE MOTOR CONTROL CIRCUIT MALFUNCTION Pinpoint Test Z: SENSOR SUPPLY VOLTAGE MALFUNCTION, HIGH/LOW VOLTAGE Pinpoint Test AA: SENSOR GROUND CIRCUITS OPEN CIRCUIT Pinpoint Test AB: STARTER RELAY SIGNAL Pinpoint Test AC: RIGHT-HAND VARIABLE CAMSHAFT TIMING (VCT) OIL CONTROL SOLENOID MALFUNCTION, CIRCUIT MALFUNCTION Pinpoint Test AD: LEFT-HAND VARIABLE CAMSHAFT TIMING (VCT) OIL CONTROL SOLENOID MALFUNCTION, CIRCUIT MALFUNCTION Pinpoint Test AE: EMS CONTROL RELAY MALFUNCTION Pinpoint Test AF: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR SENSING CIRCUIT MALFUNCTION, HIGH/LOW VOLTAGE Pinpoint Test AG: ENGINE FUEL TEMPERATURE (EFT) SENSOR RANGE/PERFORMANCE, LOW/HIGH VOLTAGE Pinpoint Test AH: AIR CONDITIONING (A/C) PRESSURE SENSOR CIRCUIT LOW/HIGH VOLTAGE Pinpoint Test AI: MANIFOLD ABSOLUTE PRESSURE SENSOR/TEMPERATURE (MAPT) SENSOR, INTAKE AIR TEMPERATURE (IAT2) SENSING CIRCUIT Pinpoint Test AJ: AIR CLEANER SOLENOID VALVE DRIVE CIRCUIT MALFUNCTION Pinpoint Test AK: CHECK THE AUXILIARY COOLANT PUMP FUNCTION Pinpoint Test AL: FUEL RAIL PRESSURE (FRP) SENSOR CIRCUIT Pinpoint Test AM: MANIFOLD ABSOLUTE PRESSURE/TEMPERATURE (MAPT) SENSOR PRESSURE SENSING CIRCUIT Pinpoint Test AN: BRAKE SWITCH Pinpoint Test AO: AIR CONDITIONING (A/C) COMPRESSOR CLUTCH CONTROL CIRCUIT Brake Pedal Position (BPP) Switch - Removal and Installation Removal Installation Camshaft Position (CMP) Sensor LH - Removal and Installation Removal Installation Camshaft Position (CMP) Sensor RH - Removal and Installation Removal Installation Catalyst Monitor Sensor - Removal and Installation Notes Removal Installation Crankshaft Position (CKP) Sensor - Removal and Installation Removal Installation Engine Control Module (ECM) - Removal and Installation Notes Removal Installation Engine Coolant Temperature (ECT) Sensor - Removal and Installation Removal Installation Fuel Temperature Sensor - Removal and Installation Removal Installation Heated Oxygen Sensor (HO2S) - Removal and Installation Notes Removal Installation Intake Air Temperature (IAT) Sensor - Removal and Installation Removal Installation Knock Sensor (KS) LH - Removal and Installation Removal Installation Manifold Absolute Pressure (MAP) Sensor - Removal and Installation Removal Installation Mass Air Flow (MAF) Sensor - Removal and Installation Removal Installation Oil Temperature Sensor - Removal and Installation Removal Installation Variable Camshaft Timing (VCT) Oil Control Solenoid - Removal and Installation Removal Installation