Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 678 (ENGINE CONTROLS - 4.3L - INTRODUCTION (2 OF 2))DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Suburban K2500, 6.0 U
Diagnostic Code Index
2006 Chevrolet Suburban K2500, 6.0 USECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2006 GMC Sierra and 2006 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC P0016 | Crankshaft Position (CKP) - Camshaft Position (CMP) Correlation |
| DTC P0030, P0036, P0050, or P0056 | HO2S Heater Control Circuit Sensor |
| DTC P0053, P0054, P0059, or P0060 | HO2S Heater Resistance Sensor |
| DTC P0101 | 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 | 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 P0121 | Throttle Position (TP) Sensor Performance |
| DTC P0122 | Throttle Position (TP) Sensor Circuit Low Voltage |
| DTC P0123 | Throttle Position (TP) Sensor Circuit High Voltage |
| DTC P0128 | Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature |
| DTC P0131 or P0151 | HO2S Circuit Low Voltage Sensor |
| DTC P0132 or P0152 | HO2S Circuit High Voltage Sensor |
| DTC P0133 or P0153 | HO2S Slow Response Sensor |
| DTC P0134 or P0154 | HO2S Circuit Insufficient Activity Sensor |
| DTC P0135, P0141, P0155, or P0161 | HO2S Heater Performance Sensor |
| DTC P0137 or P0157 | HO2S Circuit Low Voltage Sensor |
| DTC P0138 or P0158 | HO2S Circuit High Voltage Sensor |
| DTC P0140 or P0160 | HO2S Circuit Insufficient Activity Sensor |
| DTC P0171 or P0174 | Fuel Trim System Lean |
| DTC P0172 or P0175 | Fuel Trim System Rich |
| DTC P0200 | Injector Control 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) Circuit |
| DTC P0327 | Knock Sensor (KS) 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 P0351 | Ignition Coil 1 Control Circuit |
| DTC P0420 or P0430 | Catalyst System Low Efficiency |
| DTC P0442 | Evaporative Emission (EVAP) System Small Leak Detected |
| 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 P0451 | Fuel Tank Pressure (FTP) Sensor Performance |
| DTC P0452 | Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage |
| DTC P0453 | Fuel Tank Pressure (FTP) Sensor Circuit High Voltage |
| DTC P0454 | Fuel Tank Pressure (FTP) Sensor Circuit Intermittent |
| DTC P0455 | Evaporative Emission (EVAP) System Large Leak Detected |
| DTC P0496 | Evaporative Emission (EVAP) System Flow During Non-Purge |
| DTC P0506 | Idle Speed Low |
| DTC P0507 | Idle Speed High |
| DTC P0601-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 P1121 | Throttle Position (TP) Sensor Circuit Intermittent High Voltage |
| DTC P1122 | Throttle Position (TP) Sensor Circuit Intermittent Low Voltage |
| DTC P1133 or P1153 | HO2S Insufficient Switching Sensor |
| DTC P1134 or P1154 | HO2S Transition Time Ratio Sensor |
| DTC P1380 | Misfire Detected - Rough Road Data Not Available |
| DTC P1381 | Misfire Detected - No Communication With Brake Control Module |
| DTC P2A01 or P2A04 | HO2S Performance Sensor |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.