What is the code for check engine light and reduced engine power?
GM has issued a service bulletin #08-06-04-041B to address a check engine light and reduce engine power message. You’ll also find the following trouble codes stored in your PCM P1125, P2101, P2120, P2125 OR P2138 as well and hesitation on acceleration.
Why is my Check Engine light not working?
The bulletin affects the vehicles listed below GM has determined that the cause of the trouble codes might be related to moisture in electrical connector X101 located on the left (driver’s side) strut (shock) tower. To diagnose, disconnect connector X101.
How to fix reduced engine power and service traction?
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How do you seal a check engine light?
If you find moisture, blow it dry with compressed air. Then fill the cavities on both halves with dielectric grease. Then reinstall the seals and wipe away any lubricant that may have oozed out onto the outside of the connector. Add additional sealing to the connector halves using 3M™ Scotch® Electrical Moisture Sealant Tape, P/N 06149.
How to check engine light and reduced power?
To diagnose, disconnect connector X101. Use a small screwdriver or pick to remove the wire seal from the connector on both side of the connector (male and female sides). Check for the presence of moisture on both halves of the connector.
What does the reduced engine power warning mean?
Asking what engaged reduced engine power warning message is somewhat like asking what turned on your check engine light —there are too many possibilities to list. Plus, GM has changed its fail-safe strategies over the years, so exactly what can engage the message depends on the year and model of your vehicle.
Why is my GM engine light not working?
GM has determined that the cause of the trouble codes might be related to moisture in electrical connector X101 located on the left (driver’s side) strut (shock) tower. To diagnose, disconnect connector X101. Use a small screwdriver or pick to remove the wire seal from the connector on both side of the connector (male and female sides).
Where do I find reduced engine power message?
If you’ve got the owner’s manual to your GM vehicle (Chevy, Buick, etc.) handy, you can flip to the section about the driver information center (or instrument cluster). There, you’ll find a general overview of what the Engine Power Reduced message means for your particular year and model.