Chevrolet Diagnostic Trouble Codes
OBD2 fault codes seen on Chevrolet vehicles, with what each code means and the Chevrolet models it shows up on. Each code's page has its typical repair cost range.
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Cylinder 7 Misfire Detected
- Chevrolet Silverado 1500 5.3 V8 (Gen IV, AFM) • 2007-2013
The 5.3 V8 numbers its odd cylinders on the driver's (left) bank, so cylinder 7 is the rearmost cylinder on…
Cylinder 8 Misfire Detected
- Chevrolet Silverado 1500 5.3 V8 (Gen IV, AFM) • 2007-2013
On the 5.3 V8 the even-numbered cylinders sit on the passenger (right) bank, so cylinder 8 is the rearmost…
Electrical
Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
- Chevrolet Silverado • 1999-2013
GM LS-series V8 (4.8, 5.3, 6.0) with knock sensors mounted in the lifter valley under the intake manifold…
Engine Oil Pressure Sensor/Switch Circuit Malfunction
- Chevrolet Silverado 1500 • 2007-2013
5.3L V8 (LC9/LMG) sensor sits under the intake manifold at the rear of the valley. This is a well-known…
Engine Oil Pressure Sensor/Switch Range/Performance
- Chevrolet Silverado 1500 • 2007-2014
5.3L and 6.0L V8s with Active Fuel Management. The sensor lives under the intake manifold and is a known…
Throttle Actuator "A" Control Motor Circuit/Open
- Chevrolet Camaro • 2014
An ALLDATA repair case on a 2014 Camaro with the 3.6 V6 stored P2100 with P2101 and P2176 and a significant…
Lost Communication With ECM/PCM 'A'
- Chevrolet Silverado 1500 (GMT900) • 2007-2013
GMT900 trucks use GMLAN (single-wire and dual-wire). U0100 commonly traces to rodent damage on the engine…
Lost Communication With Anti-Lock Brake System (ABS) Control Module
- Chevrolet Silverado 1500 • 2007-2013 (GMT900, 5.3L Vortec)
EBCM failures on GMT900 trucks are common enough that the module is the first suspect, not the last. A…
Ignition
Ignition Coil E Primary/Secondary Circuit Malfunction
- Chevrolet Silverado 1500 5.3 V8 (Gen IV) • 2007-2013
On the 5.3 V8, coil E fires cylinder 5, the third cylinder back on the driver's (left) bank (GM puts odd…
Ignition Coil F Primary/Secondary Circuit Malfunction
- Chevrolet Silverado 1500 5.3 V8 (Gen IV) • 2007-2013
On the 5.3 V8, coil F fires cylinder 6, the third cylinder back on the passenger (right) bank (GM puts odd…
Ignition Coil G Primary/Secondary Circuit Malfunction
- Chevrolet Silverado 1500 5.3 V8 (Gen IV) • 2007-2013
On the 5.3 V8, coil G fires cylinder 7, the rearmost cylinder on the driver's (left) bank (GM puts odd…
Ignition Coil H Primary/Secondary Circuit Malfunction
- Chevrolet Silverado 1500 5.3 V8 (Gen IV) • 2007-2013
On the 5.3 V8, coil H fires cylinder 8, the rearmost cylinder on the passenger (right) bank (GM puts odd…
Crankshaft Position System Variation Not Learned (GM); Crank/Cam Sensor Range/Performance (Ford)
- Chevrolet K1500 5.0 V8 (1998) • 1998
GM defines P1336 as crankshaft position system variation not learned: the engine computer has no stored…
Cooling System
Emissions
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