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DTC codes / GM diagnostic trouble codes

GM diagnostic trouble codes

Codes GM defines for its own vehicles. Other makes use the same numbers for different faults, so check that the code was read from a GM vehicle.

P1305 GM: Ignition Coil 2 Primary Feedback Circuit Powertrain P1310 GM: Ignition Coil 3 Primary Feedback Circuit Powertrain P1315 GM: Ignition Coil 4 Primary Feedback Circuit Powertrain P1320 GM: Distributorless Ignition 4X Signal Intermittent Powertrain P1321 GM: Electronic Ignition System Fault Line Powertrain P1322 GM: EI System Or Ignition Control Missing Powertrain P1323 GM: Loss of High Resolution RPM Signal Powertrain P1324 GM: Crank RPM Too Low Powertrain P1335 GM: Crankshaft Positioning Sensing Circuit Powertrain P1336 GM: Crankshaft Position System Variation Not Learned Powertrain P1345 GM: Camshaft to Crankshaft Position Correlation Fault Powertrain P1346 GM: Intake Camshaft Position (CMP) Sensor System Performance Powertrain P1349 GM: Intake Camshaft Position System Powertrain P1350 GM: Ignition Control System Powertrain P1351 GM: Ignition Control Circuit Voltage High Powertrain P1352 GM: IC Output High Pulse Detected When Grounded Cyl 2 Powertrain P1353 GM: IC Output High Pulse Detected When Grounded Cyl 3 Powertrain P1354 GM: IC Output High Pulse Detected When Grounded Cyl 4 Powertrain P1355 GM: IC Output High Pulse Detected When Grounded Cyl 5 Powertrain P1356 GM: IC Output High Pulse Detected When Grounded Cyl 6 Powertrain P1357 GM: IC Output High Pulse Detected When Grounded Cyl 7 Powertrain P1358 GM: IC Output High Pulse Detected When Grounded Cyl 8 Powertrain P1359 GM: Ignition Control Circuit Group A Powertrain P1360 GM: Ignition Control Circuit Group B Powertrain P1361 GM: IC Circuit Low Voltage Powertrain P1362 GM: IC Cylinder 2 Not Toggling After Enable Powertrain P1363 GM: IC Cylinder 3 Not Toggling After Enable Powertrain P1364 GM: IC Cylinder 4 Not Toggling After Enable Powertrain P1365 GM: IC Cylinder 5 Not Toggling After Enable Powertrain P1366 GM: IC Cylinder 6 Not Toggling After Enable Powertrain P1367 GM: IC Cylinder 7 Not Toggling After Enable Powertrain P1368 GM: IC Cylinder 8 Not Toggling After Enable Powertrain P1370 GM: IC Module 4X Reference Circuit Too Many Pulses Powertrain P1371 GM: DI Low Resolution Circuit Powertrain P1372 GM: Crankshaft Position Sensor Circuit Performance Powertrain P1374 GM: 3X Reference Circuit Powertrain P1375 GM: 24X Reference Circuit High Voltage Powertrain P1376 GM: Ignition Ground Circuit Powertrain P1377 GM: IC Module CAM Pulse To 4X Reference Pulse Comparison Powertrain P1380 GM: Misfire Detected Rough Road Data Not Available Powertrain P1381 GM: Misfire Detected No Communication with Brake Control Module Powertrain P1388 GM: Auto Shutdown ASD Relay Control Circuit Open Or Shorted Powertrain P1389 GM: No Auto Shutdown ASD Relay Output Voltage At PCM Powertrain P1390 GM: Wheel Speed Sensor 1 G-Sensor Circuit Powertrain P1391 GM: Wheel Speed Sensor 1 G-Sensor Circuit Performance Powertrain P1392 GM: Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage Powertrain P1393 GM: Wheel Speed Sensor 1 G-Sensor Circuit High Voltage Powertrain P1394 GM: Wheel Speed Sensor 1 G-Sensor Circuit Intermittent Powertrain P1395 GM: Wheel Speed Sensor 2 G-Sensor Circuit Powertrain P1396 GM: Wheel Speed Sensor 2 G-Sensor Circuit Performance Powertrain P1397 GM: Wheel Speed Sensor 2 G-Sensor Circuit Low Voltage Powertrain P1398 GM: Wheel Speed Sensor 2 G-Sensor Circuit High Voltage Powertrain P1399 GM: Wheel Speed Sensor 2 G-Sensor Circuit Intermittent Powertrain P1403 GM: Exhaust Gas Recirculation System Valve 1 Powertrain P1404 GM: Exhaust Gas Recirculation System Valve 2 Powertrain P1405 GM: EGR Valve Control Circuit Powertrain P1406 GM: EGR Valve Pintle Position Circuit Powertrain P1407 GM: EGR Air Intrusion In Exhaust Supply To EGR Valve Powertrain P1408 GM: Intake Manifold Pressure Sensor Circuit Powertrain P1409 GM: EGR Vacuum System Leak Powertrain
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