LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2004 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Engine Performance 6.0L DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Performance 6.0L DTCS

ENGINE PERFORMANCE 6.0L DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Definition
DTC P0068 Throttle Body Air Flow Performance
DTC P0101 (With Throttle Actuator Control) Mass Air Flow (MAF) Sensor Performance
DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
DTC P0106 (With Throttle Actuator Control) Manifold Absolute Pressure (MAP) Sensor Performance
DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
DTC P0116 Engine Coolant Temperature (ECT) Sensor Performance
DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
DTC P0120 Throttle Position (TP) Sensor 1 Circuit
DTC P0125 TP Sensor
DTC P0128 Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature
DTC P0131 or P0151 HO2S Circuit Low Voltage Bank 1/2 Sensor 1
DTC P0132 or P0152 HO2S Circuit High Voltage Bank 1/2 Sensor 1
DTC P0133 or P0153 HO2S Slow Response Bank 1/2 Sensor 1
DTC P0134 or P0154 HO2S Circuit Insufficient Activity Bank 1/2 Sensor 1
DTC P0135 or P0155 HO2S Heater Performance Bank 1/2 Sensor 1
DTC P0136 or P0156  
DTC P0137 or P0157 HO2S Circuit Low Voltage Bank 1/2 Sensor 2
DTC P0138 or P0158 HO2S Circuit High Voltage Bank 1/2 Sensor 2
DTC P0140 or P0160 HO2S Circuit Insufficient Activity Bank 1/2 Sensor 2
DTC P0141 or P0161 HO2S Heater Performance Bank 1/2 Sensor 2
DTC P0171 or P0174 Fuel Trim System Lean Bank 1/2
DTC P0172 or P0175 Fuel Trim System Rich Bank 1/2
DTC P0200 Injector Control Circuit
DTC P0220 Throttle Position (TP) Sensor 2 Circuit
DTC P0230 Fuel Pump Relay Control Circuit
DTC P0300 Engine Misfire Detected
DTC P0315 Crankshaft Position (CKP) System Variation Not Learned
DTC P0325 Knock Sensor (KS) 1 Circuit
DTC P0327 or P0332 Knock Sensor (KS) 1/2 Circuit Low Frequency
DTC P0335 Crankshaft Position (CKP) Sensor Circuit
DTC P0336 Crankshaft Position (CKP) Sensor Performance
DTC P0341 Camshaft Position (CMP) Sensor Performance
DTC P0342 Camshaft Position (CMP) Sensor Circuit Low Voltage
DTC P0343 Camshaft Position (CMP) Sensor Circuit High Voltage
DTC P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358 Ignition Coil Control Circuit
DTC P0420 or P0430 Catalyst System Low Efficiency Bank 1
DTC P0442 Catalyst System Low Efficiency Bank 2
DTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
DTC P0446 Evaporative Emission (EVAP) Vent System Performance
DTC P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit
DTC P0452 Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
DTC P0453 Fuel Tank Pressure (FTP) Sensor Circuit High Voltage
DTC P0455 Evaporative Emission (EVAP) System
DTC P0496 Evaporative Emission (EVAP) System Flow During Non-Purge
DTC P0506 (TAC) Idle Speed Low
DTC P0507 (TAC) Idle Speed High
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 Control Module
DTC P0641 5-Volt Reference 1 Circuit
DTC P0650 Malfunction Indicator Lamp (MIL) Control Circuit
DTC P0651 5-Volt Reference 2 Circuit
DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
DTC P1125 Accelerator Pedal Position (APP) System
DTC P1133 or P1153 HO2S Insufficient Switching Bank 1/2 Sensor 1
DTC P1134 or P1154 HO2S Transition Time Ratio Bank 1/2 Sensor 1
DTC P1380 Misfire Detected - Rough Road Data Not Available
DTC P1381 Misfire Detected - No Communication With Brake Control Module
DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
DTC P2101 Control Module Throttle Actuator Position Performance
DTC P2108 Throttle Actuator Control (TAC) Module Performance
DTC P2120 Accelerator Pedal Position (APP) Sensor 1 Circuit
DTC P2121 Accelerator Pedal Position (APP) Sensor 1 Performance
DTC P2125 Accelerator Pedal Position (APP) Sensor 2 Circuit
DTC P2135 Throttle Position (TP) Sensor 1-2 Correlation
DTC U0107 PCM