Fault code lookup

GMC fault codes

Coverage shown is GM data: 17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters.

GMC shares fault-code data with GM. Data may not cover GMC-specific systems.

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Codes 17,703

CodeDescriptionBrandsSystem
P3174Fuel Trim Bank 2: Range 3: Rich Limit Exceeded12Powertrain
P3175Cell low voltage [085]13Powertrain
P3176Cell low voltage [086]13Powertrain
P3177Cell low voltage [087]13Powertrain
P3178Fuel Trim Bank 4: Range 3: Rich Limit Exceeded12Powertrain
P3179Fuel Injector for Cylinder 13 (N390): Short to Ground12Powertrain
P317ACell low voltage8Powertrain
P3186Fuel Injector for Cylinder 15 (N392): Short to Plus12Powertrain
P3187Cell low voltage [103]13Powertrain
P3188Cell low voltage [104]13Powertrain
P3189Fuel Injector for Cylinder 16 (N393): Short to Plus12Powertrain
P318ACell low voltage8Powertrain
P318BCell low voltage8Powertrain
P318CCell low voltage8Powertrain
P318DCell low voltage8Powertrain
P318ECell low voltage9Powertrain
P318FCell low voltage8Powertrain
P3190Engine not ready18Powertrain
P3196Cell low voltage [118]13Powertrain
P3197Cell low voltage [119]13Powertrain
P3198Cell low voltage [120]13Powertrain
P3199Engine temperature sensor constant14Powertrain
P319ACell low voltage8Powertrain
P319BCell low voltage9Powertrain
P319CCell low voltage9Powertrain
P319DCell low voltage10Powertrain
P319EControl circuit for intake flap bank 2: open or short to ground; No signal/communication11Powertrain
P319FCell low voltage10Powertrain
P31A0Cell low voltage9Powertrain
P31A1Cell low voltage10Powertrain
P31A2Cell low voltage10Powertrain
P31A3Cell low voltage9Powertrain
P31A4Cell low voltage10Powertrain
P31A5Cell low voltage11Powertrain
P31A6Cell low voltage10Powertrain
P31A7Cell low voltage10Powertrain
P31A8Cell low voltage10Powertrain
P31A9Cell low voltage10Powertrain
P31AACell low voltage12Powertrain
P31ABCell low voltage12Powertrain
P31ACCell low voltage11Powertrain
P31B1Cell high voltage11Powertrain
P31B5Cell high voltage11Powertrain
P31B6Cell high voltage10Powertrain
P31B7Cell high voltage10Powertrain
P31B8Cell high voltage10Powertrain
P31BACell high voltage11Powertrain
P31BCCell high voltage10Powertrain
P31BDCell high voltage8Powertrain
P31C0Cell high voltage10Powertrain

Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.

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