COMPONENT LOCATIONS
Note. For component locations (Scheme 57)or (Scheme 58).
Home/GMC/Savana H2500/GMC Savana H2500 (2003-2003)/Repair manual/Testing & Diagnostics/Engine Controls - System & Component Testing - 6.0L W/bifue…
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Diagnostic Procedures: Overview
- Engine Controls - Basic Diagnostic Procedures: Diagnosis
- Engine Controls - Basic Diagnostic Procedures: Other
- Engine Controls - Basic Diagnostic Procedures - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline Engines: Overview
- Engine Controls - Basic Diagnostic Procedures - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline Engines: Diagnosis
- Engine Controls - Basic Diagnostic Procedures - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline Engines: Other
- Engine Controls - Basic Diagnostic Procedures - 6.0L W/bifuel & Cng Engines: Overview
- Engine Controls - Basic Diagnostic Procedures - 6.0L W/bifuel & Cng Engines: Diagnosis
- Engine Controls - Basic Diagnostic Procedures - 6.0L W/bifuel & Cng Engines: Other
- Engine Controls - Trouble Shooting - No Codes - 4.3L: Diagnosis
- Engine Controls - Trouble Shooting - No Codes - 4.3L: Wiring
- Engine Controls - Trouble Shooting - No Codes - 4.3L: NVH
- Engine Controls - Trouble Shooting - No Codes - 4.3L: Other
- Engine Controls - Trouble Shooting - No Codes - 4.8L, 5.3L & 6.0L: Overview
- Engine Controls - Trouble Shooting - No Codes - 4.8L, 5.3L & 6.0L: Diagnosis
- Engine Controls - Trouble Shooting - No Codes - 4.8L, 5.3L & 6.0L: Wiring
- Engine Controls - Trouble Shooting - No Codes - 4.8L, 5.3L & 6.0L: NVH
- Engine Controls - Trouble Shooting - No Codes - 4.8L, 5.3L & 6.0L: Other
- Engine Controls - Trouble Shooting - No Codes - 6.0L W/bifuel & Cng: Diagnosis
- Engine Controls - Trouble Shooting - No Codes - 6.0L W/bifuel & Cng: Wiring
- Engine Controls - Trouble Shooting - No Codes - 6.0L W/bifuel & Cng: NVH
- Engine Controls - Trouble Shooting - No Codes - 6.0L W/bifuel & Cng: Other
- Engine Control System & Component Tests - 4.3L: Specifications
- Engine Control System & Component Tests - 4.3L: Overview
- Engine Control System & Component Tests - 4.3L: Diagnosis
- Engine Control System & Component Tests - 4.3L: Wiring
- Engine Control System & Component Tests - 4.3L: Component Locations
- Engine Control System & Component Tests - 4.3L: Other
- Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline: Specifications
- Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline: Overview
- Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline: Diagnosis
- Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline: Wiring
- Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline: Component Locations
- Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline: Other
- Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Specifications
- Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Overview
- Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Diagnosis
- Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Wiring
- Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Component Locations
- Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Other
- Engine Controls Self-Diagnostics - 4.3L: Overview
- Engine Controls Self-Diagnostics - 4.3L: Diagnosis
- Engine Controls Self-Diagnostics - 4.3L: Wiring
- Engine Controls Self-Diagnostics - 4.3L: Component Locations
- Engine Controls Self-Diagnostics - 4.3L: NVH
- Engine Controls Self-Diagnostics - 4.3L: Other
- DTC P0016: CRANKSHAFT POSITION-TO-CAMSHAFT POSITION CORRELATION
- DTC P0101: MASS AIR FLOW SENSOR PERFORMANCE
- DTC P0102: MAF SENSOR CIRCUIT - LOW FREQUENCY
- DTC P0103: MAF SENSOR CIRCUIT - HIGH FREQUENCY
- DTC P0106: MAP SYSTEM PERFORMANCE
- DTC P0107: MAP SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0108: MAP SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0112: IAT SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0113: IAT SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0116: ECT SENSOR PERFORMANCE
- DTC P0117: ECT SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0118: ECT SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0121: TP SENSOR PERFORMANCE
- DTC P0122: TP SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0123: TP SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROL
- DTC P0128: ECT LESS THAN THERMOSTAT REGULATING TEMPERATURE
- DTC P0131: HO2S CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 1 & DTC P0151: HO2S CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 1
- DTC P0132: HO2S CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 1 & DTC P0152: HO2S CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 1
- DTC P0133: HO2S CIRCUIT - SLOW RESPONSE - BANK 1, SENSOR 1 & DTC P0153: HO2S CIRCUIT - SLOW RESPONSE - BANK 2, SENSOR 1
- DTC P0134: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1, SENSOR 1 & DTC P0154: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 2, SENSOR 1
- DTC P0135: HO2S HEATER CIRCUIT - BANK 1, SENSOR 1, DTC P0141: HO2S HEATER CIRCUIT - BANK 1, SENSOR 2, DTC P0155: HO2S HEATER CIRCUIT - BANK 2, SENSOR 1, & DTC P0161: HO2S HEATER CIRCUIT - BANK 2, SENSOR 2
- DTC P0137: HO2S CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 2 & DTC P0157: HO2S CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 2
- DTC P0138: HO2S CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 2 & DTC P0158: HO2S CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 2
- DTC P0140: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1, SENSOR 2 & DTC P0160: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 2, SENSOR 2
- DTC P0171: FUEL TRIM SYSTEM LEAN - BANK 1 & DTC P0174: FUEL TRIM SYSTEM LEAN - BANK 2
- DTC P0172: FUEL TRIM SYSTEM RICH - BANK 1 & DTC P0175: FUEL TRIM SYSTEM RICH - BANK 2
- DTC P0200: FUEL INJECTOR CONTROL CIRCUIT
- DTC P0230: FUEL PUMP CONTROL RELAY CIRCUIT
- DTC P0300: ENGINE MISFIRE DETECTED
- DTC P0315: CRANKSHAFT POSITION SYSTEM VARIATION NOT LEARNED
- DTC P0325: KNOCK SENSOR MODULE CIRCUIT
- DTC P0327: KNOCK SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P0336: CRANKSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0341: CAMSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0351: IGNITION CONTROL CIRCUIT
- DTC P0420: TWC SYSTEM - LOW EFFICIENCY - BANK 1 & DTC P0430: TWC SYSTEM - LOW EFFICIENCY - BANK 2
- DTC P0442: EVAP SYSTEM - SMALL LEAK
- DTC P0443: EVAP PURGE SOLENOID CONTROL CIRCUIT
- DTC P0446: EVAP VENT SYSTEM BLOCKED OR RESTRICTED
- DTC P0449: EVAP CANISTER VENT SOLENOID VALVE CONTROL CIRCUIT
- DTC P0452: FUEL TANK PRESSURE SENSOR - LOW VOLTAGE
- DTC P0453: FUEL TANK PRESSURE SENSOR - HIGH VOLTAGE
- DTC P0455: EVAP SYSTEM LEAK DETECTED (GROSS LEAK/NO FLOW)
- DTC P0496: EVAP SYSTEM HIGH PURGE FLOW
- DTC P0506: IDLE CONTROL SYSTEM - LOW RPM
- DTC P0507: IDLE CONTROL SYSTEM - HIGH RPM
- DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683 & P2610: PCM MEMORY/PROGRAMMING MALFUNCTION
- DTC P0641: 5-VOLT REFERENCE CIRCUIT OUT-OF-RANGE
- DTC P0650: MIL CONTROL CIRCUIT
- DTC P0651: SENSOR REFERENCE VOLTAGE CIRCUIT
- DTC P1106: MAP SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1107: MAP SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1111: IAT SENSOR CIRCUIT - INTERMITTENT HIGH SIGNAL VOLTAGE
- DTC P1112: IAT SENSOR CIRCUIT - INTERMITTENT LOW SIGNAL VOLTAGE
- DTC P1114: ECT SENSOR CIRCUIT - INTERMITTENT LOW SIGNAL VOLTAGE
- DTC P1115: ECT SENSOR CIRCUIT - INTERMITTENT HIGH SIGNAL VOLTAGE
- DTC P1121: TP SENSOR CIRCUIT - INTERMITTENT HIGH SIGNAL VOLTAGE
- DTC P1122: TP SENSOR CIRCUIT - INTERMITTENT LOW SIGNAL VOLTAGE
- DTC P1133: HO2S CIRCUIT - INSUFFICIENT SWITCHING - BANK 1, SENSOR 1 & DTC P1153: HO2S CIRCUIT - INSUFFICIENT SWITCHING - BANK 2, SENSOR 1
- DTC P1258: ENGINE OVER-TEMPERATURE CONDITION
- DTC P1380: EBCM DTC DETECTED - ROUGH ROAD DATA UNSTABLE
- DTC P1381: MISFIRE DETECTED - NO EBCM/PCM SERIAL DATA
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: Overview
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: Diagnosis
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: Maintenance
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: Wiring
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: Component Locations
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: NVH
- Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline: Other
- DTC P0101: MASS AIR FLOW SENSOR PERFORMANCE
- DTC P0102: MAF SENSOR CIRCUIT - LOW FREQUENCY
- DTC P0103: MAF SENSOR CIRCUIT - HIGH FREQUENCY
- DTC P0106: MAP SYSTEM PERFORMANCE
- DTC P0107: MAP SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0108: MAP SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0112: IAT SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0113: IAT SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0116: ECT SENSOR PERFORMANCE
- DTC P0117: ECT SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0118: ECT SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0121: THROTTLE POSITION SENSOR RANGE/PERFORMANCE
- DTC P0122: THROTTLE POSITION SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0123: THROTTLE POSITION SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROL
- DTC P0128: ECT LESS THAN THERMOSTAT REGULATING TEMPERATURE
- DTC P0131: HO2S CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 1 & DTC P0151: HO2S CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 1
- DTC P0132: HO2S CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 1 & DTC P0152: HO2S CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 1
- DTC P0133: HO2S CIRCUIT - SLOW RESPONSE - BANK 1, SENSOR 1 & DTC P0153: HO2S CIRCUIT - SLOW RESPONSE - BANK 2, SENSOR 1
- DTC P0134: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1, SENSOR 1 & DTC P0154: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 2, SENSOR 1
- DTC P0135: HO2S HEATER CIRCUIT - BANK 1, SENSOR 1, DTC P0141: HO2S HEATER CIRCUIT - BANK 1, SENSOR 2, DTC P0155: HO2S HEATER CIRCUIT - BANK 2, SENSOR 1 & DTC P0161: HO2S HEATER CIRCUIT - BANK 2, SENSOR 2
- DTC P0137: HO2S CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 2 & DTC P0157: HO2S CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 2
- DTC P0138: HO2S CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 2 & DTC P0158: HO2S CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 2
- DTC P0140: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1, SENSOR 2 & DTC P0160: HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 2, SENSOR 2
- DTC P0171: FUEL TRIM SYSTEM LEAN - BANK 1 & DTC P0174: FUEL TRIM SYSTEM LEAN - BANK 2
- DTC P0172: FUEL TRIM SYSTEM RICH - BANK 1 & DTC P0175: FUEL TRIM SYSTEM RICH - BANK 2
- DTC P0200: FUEL INJECTOR CONTROL CIRCUIT
- DTC P0230: FUEL PUMP CONTROL RELAY CIRCUIT
- DTC P0300: ENGINE MISFIRE DETECTED
- DTC P0315: CRANKSHAFT POSITION SENSOR VARIATION NOT LEARNED
- DTC P0325: KNOCK SENSOR MODULE CIRCUIT
- DTC P0327: KNOCK SENSOR CIRCUIT - LOW VOLTAGE - SENSOR 1 & DTC P0332: KNOCK SENSOR CIRCUIT - LOW VOLTAGE - SENSOR 2
- DTC P0335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P0336: CRANKSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0341: CAMSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0342: CAMSHAFT POSITION SENSOR - SIGNAL LOW
- DTC P0343: CAMSHAFT POSITION SENSOR - SIGNAL HIGH
- DTC P0351-P0358: IGNITION CONTROL CIRCUIT
- DTC P0401: EGR FLOW ERROR
- DTC P0404: EGR CONTROL CIRCUIT RANGE/PERFORMANCE
- DTC P0405: EGR VALVE POSITION SENSOR SIGNAL - LOW VOLTAGE
- DTC P0420: TWC SYSTEM - LOW EFFICIENCY - BANK 1 & P0430: TWC SYSTEM - LOW EFFICIENCY - BANK 2
- DTC P0442: EVAP SYSTEM - SMALL LEAK
- DTC P0443: EVAP PURGE SOLENOID CONTROL CIRCUIT
- DTC P0446: EVAP SYSTEM VENT BLOCKED OR RESTRICTED
- DTC P0449: EVAP CANISTER VENT SOLENOID VALVE CONTROL CIRCUIT - ELECTRICAL MALFUNCTION
- DTC P0452: FUEL TANK PRESSURE SENSOR - LOW VOLTAGE
- DTC P0453: FUEL TANK PRESSURE SENSOR - HIGH VOLTAGE
- DTC P0455: EVAP SYSTEM LEAK DETECTED - GROSS LEAK/NO FLOW
- DTC P0496: EVAP SYSTEM HIGH PURGE FLOW
- DTC P0506: IDLE CONTROL SYSTEM - LOW RPM
- DTC P0507: IDLE CONTROL SYSTEM - HIGH RPM
- DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683 & P2610: PCM NOT PROGRAMMED/INTERNAL INTEGRITY CONDITION
- DTC P0641: 5-VOLT REFERENCE CIRCUIT OUT OF RANGE
- DTC P0650: MIL CONTROL CIRCUIT
- DTC P0651: SENSOR REFERENCE VOLTAGE CIRCUIT
- DTC P1106: MAP SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1107: MAP SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1111: IAT SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1112: IAT SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1114: ECT SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1115: ECT SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1121: TP SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1122: TP SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1133: HO2S CIRCUIT - INSUFFICIENT SWITCHING - BANK 1, SENSOR 1 & DTC P1153: HO2S CIRCUIT - INSUFFICIENT SWITCHING - BANK 2, SENSOR 1
- DTC P1258: ENGINE OVER-TEMPERATURE CONDITION
- DTC P1380: EBCM DTC DETECTED ROUGH ROAD DATA UNSTABLE
- DTC P1381: MISFIRE DETECTED - NO EBCM/PCM SERIAL DATA
- DTC P1404: EGR VALVE CLOSED PINTLE POSITION
- Engine Controls Self-Diagnostics - 6.0L Bi-Fuel & Cng: Overview
- Engine Controls Self-Diagnostics - 6.0L Bi-Fuel & Cng: Diagnosis
- Engine Controls Self-Diagnostics - 6.0L Bi-Fuel & Cng: Wiring
- Engine Controls Self-Diagnostics - 6.0L Bi-Fuel & Cng: Component Locations
- Engine Controls Self-Diagnostics - 6.0L Bi-Fuel & Cng: NVH
- Engine Controls Self-Diagnostics - 6.0L Bi-Fuel & Cng: Other
- DTC P0005: FUEL SHUTOFF VALVE "A" CONTROL CIRCUIT/OPEN
- DTC P0148: FUEL DELIVERY ERROR
- DTC P0171: FUEL TRIM SYSTEM LEAN - BANK 1 & DTC P0174: FUEL TRIM SYSTEM LEAN - BANK 2
- DTC P0172: FUEL TRIM SYSTEM RICH - BANK 1 & DTC P0175: FUEL TRIM SYSTEM RICH - BANK 2
- DTC P0182: FUEL TANK TEMPERATURE SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0183: FUEL TANK TEMPERATURE SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0187: FUEL RAIL TEMPERATURE SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0188: FUEL RAIL TEMPERATURE SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0191: FUEL RAIL PRESSURE SENSOR CIRCUIT PERFORMANCE
- DTC P0192: FUEL RAIL PRESSURE SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0193: FUEL RAIL PRESSURE SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0200: INJECTOR CONTROL CIRCUIT VOLTAGE
- DTC P0300: RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED
- DTC P0611: FUEL INJECTOR CONTROL MODULE PERFORMANCE
- DTC P1020: INCORRECT VOLTAGE ON A CNG FUEL INJECTOR CONTROL CIRCUIT
- DTC P1204: VEHICLE DOES NOT START ON CNG
- DTC P1207: FUEL RAIL PRESSURE OUTPUT PWM SIGNAL NOT RECEIVED BY PCM
- DTC P1208: FUEL RAIL TEMPERATURE OUTPUT PWM SIGNAL NOT RECEIVED BY PCM
- DTC P1209: FICM DIAGNOSTIC OUTPUT PWM SIGNAL NOT RECEIVED BY PCM
- DTC P1432: FUEL TANK PRESSURE SENSOR SIGNAL LOW
- DTC P1433: FUEL PRESSURE SENSOR SIGNAL HIGH
- DTC P2146: INCORRECT VOLTAGE DETECTED - COMMAND STATE OF AFO ENABLE CIRCUIT
- DTC P2665: INCORRECT VOLTAGE DETECTED - LOW PRESSURE LOCK-OFF SOLENOID
- DTC P2668: INCORRECT VOLTAGE DETECTED - FUEL INDICATOR LIGHT
- Abbreviations
- Accessories Control Systems
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