FAQ for Engine Control Module Repair
Q: How does the Powertrain Control Module work?
A:
The PCM controls all ignition system functions, and constantly corrects the spark timing.
By BobGM Specialist
01/11/2022 Q: When will the MIL illuminate?
A:
The MIL illuminates when the ignition is turned ON, with the engine OFF.
By BobGM Specialist
01/11/2022 Q: Will the installation jeopardize the warranty coverage?
A:
Dealers must understand that by installing such devices, they are jeopardizing not only the warranty coverage but also the performance and reliability of the customer's vehicle.
By BobGM Specialist
01/11/2022 Q: What should be noticed when servicing the Powertrain Control Module?
A:
The replacement PCM must be reprogrammed and the crankshaft position system variation learning procedure must be performed.
By BobGM Specialist
01/11/2022 Q: What should the GM dealers do before beginning recall repairs?
A:
GM Dealers and Canadian Saturn Retailers should confirm vehicle eligibility through GMVIS (GM Vehicle Inquiry System) before beginning recall repairs.
By BobGM Specialist
01/11/2022 Q: How long will the repair take?
A:
This service correction will take approximately 40 to 70 minutes. However, due to service scheduling requirements, your dealer may need your vehicle for a longer period.
By BobGM Specialist
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