DTC Codes
GMC OBD-II Codes
8 codes
P0011Sierra 1500 — A Camshaft Position - Timing Over-Advanced or…P0014Sierra 1500 — B Camshaft Position - Timing Over-Advanced or…P0171Sierra 1500 — Fuel system too leanP0300Sierra 1500 — Random/Multiple Cylinder Misfire DetectedP0420Sierra 1500 — Catalyst System Efficiency Below Threshold Ba…P0455Sierra 1500 — Evaporative Emission System Leak Detected Lar…P0506Sierra 1500 — Idle Air Control System RPM Lower Than Expect…P0741Sierra 1500 — Torque Converter Clutch Circuit Performance