P1125 on Chevrolet
On Chevrolet, the accelerator pedal position sensors are faulty or disagree
Severity: Inspect soon
On the Chevrolet trucks and vans in GM bulletins this code appears alongside reduced-power complaints, so the engine can limit power until the pedal sensors are fixed.
It gets more serious if:
- Stop: Stop driving if the engine stalls or the vehicle will not accelerate in traffic.
This page covers only what differs on Chevrolet. For what P1125 means, the ranked causes and the test order, see the P1125 guide.
What's different on Chevrolet
ChevroletYour car
2003 · Avalanche
Supported by vehicle dataGM bulletin 030604031 revised the P1125 definition for 2003 trucks and SUVs. Not verified as current.
2005 · Equinox
Supported by vehicle dataGM bulletin 01912 covers a check engine light on the 2005 Equinox with P1125 or P2138. Not verified as current.
2004 · Express
Supported by vehicle dataGM bulletin 3239 covers a warning light on the 2004 Express with P1125 and P2125. Not verified as current.
030604031Status unverified
Revised diagnostic trouble code P1125
2003avalanche, tahoe, trailblazer, suburban · issued · NHTSA 10002858
GM revised the P1125 diagnostic description for 2003 trucks and SUVs. The NHTSA summary does not give a repair.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
01912Status unverified
MIL on with P1125 or P2138
2005equinox · issued · NHTSA 10006817
Covers a check engine light on the 2005 Equinox with P1125 or P2138, or both.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
3239Status unverified
Light on with P1125 and P2125
2004express · issued · NHTSA 10010657
Covers a warning light on the 2004 Express with P1125 and P2125 set.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- Chevrolet 030604031: Revised diagnostic trouble code P1125
- Chevrolet 01912: MIL on with P1125 or P2138
- Chevrolet 3239: Light on with P1125 and P2125
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error