2.8 LK5 3.5 L52 4.6 LD8 L37 Engine - DTC P0351 - P0358 Mislabeled DTCs - coil ignitionICMIL misfire PCM P0352 P0353 P0354 P0355 P0356 P0357
| Subject: | 2.8 LK5 3.5 L52 4.6 LD8 L37 Engines - DTC P0351 - P0358 Mislabeled DTCs |
| Models: | . |
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
DTC P0351 - P0358 Mislabeled DTCs. DTC displayed on Tech 2 may not reflect actual IC circuit or coil/module or where problem is detected.
Recommendation/Instructions:
The ignition coil output driver diagnostics do not always report back the correct cylinder number to the PCM. The reported cylinder number corresponds to the guilty coil's position in the firing order rather than to its cylinder number. The mapping or reporting back is done in software and is under investigation.
For the 2.8L LK5, the codes relate to the following cylinders: | |
Failure On | Sets |
Cyl 1 ignition coil/module | P0351 |
Cyl 2 ignition coil/module | P0354 |
Cyl 3 ignition coil/module | P0352 |
Cyl 4 ignition coil/module | P0353 |
For the 3.5L L52, the codes relate to the following cylinders | |
Failure On | Sets |
Cyl 1 ignition coil/module | P0351 |
Cyl 2 ignition coil/module | P0355 |
Cyl 3 ignition coil/module | P0352 |
Cyl 4 ignition coil/module | P0354 |
Cyl 5 ignition coil/module | P0353 |
For the 4.6L LD8 and L37 applications, the codes relate to the following cylinders, | |
Failure On | Sets |
Cyl 1 ignition coil/module | P0351 |
Cyl 2 ignition coil/module | P0352 |
Cyl 3 ignition coil/module | P0354 |
Cyl 4 ignition coil/module | P0355 |
Cyl 5 ignition coil/module | P0356 |
Cyl 6 ignition coil/module | P0357 |
Cyl 7 ignition coil/module | P0353 |
Cyl 8 ignition coil/module | P0358 |
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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.
Models:
(04 Chevrolet Colorado) and (04 GMC Canyon) and (2004 Cadillac Deville ) and (2004 Cadillac Seville ) and (04 Pontiac Bonneville GXP)
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