P129F on Chevrolet
On GM vehicles, the fuel pump power control module reports that the fuel pump speed signal is incorrect
Severity: Inspect soon
The module that runs the fuel pump has a fault. GM lists crank/no-start, stalling and loss of power with this code, so the car may leave you stranded. Get it inspected soon.
It gets more serious if:
- Stop: Stop driving and have it towed if the engine stalls, cuts out or loses power while moving. GM's bulletins list stalling and loss of power with this code, and a sudden loss of drive power in traffic increases the risk of a crash.
This page covers only what differs on Chevrolet. For what P129F means, the ranked causes and the test order, see the P129F guide.
What's different on Chevrolet
ChevroletYour car
2021–2023 · Equinox
Supported by vehicle dataGM bulletins replace the fuel pump driver control module for stalling or no-start with P129F; GM also opened an engineering inquiry on 2022 models. Whether the bulletins are still current is not verified.
2022–2023 · Silverado 1500
Supported by vehicle dataFPDCM replacement for P129F with no-start, stalling or loss of power. Whether the bulletin is still current is not verified.
24-NA-139Status unverified
Replace fuel pump driver control module for no start, stalling, loss of power with P023F/P129F
2021–2023equinox, blazer, traverse, tahoe, malibu, silverado-1500 · issued · NHTSA 11006410
Replace the FPDCM if it causes crank-no-start, stalling, loss of power, an inoperative or erratic fuel gauge or MIL with P023F and/or P129F. Also Buick, Cadillac and GMC models.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
PIP5964CStatus unverified
Replace K111 FPDCM if no start, stalling, loss of power etc. are verified with P023F or P129F
2021–2023equinox, blazer, traverse, tahoe, malibu, silverado-1500 · issued · NHTSA 10253111
Replace the K111 FPDCM if no start, stalling, rough idle, no acceleration, loss of power, erratic shifting or an inoperative fuel gauge is verified with P023F or P129F.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
PIE0730Status unverified
Engineering information request: MIL, no start and/or stall with P129F (Equinox, Terrain)
2022equinox · issued · NHTSA 10228854
Engineering information request: MIL on, no start and/or stall with P129F. Also GMC Terrain.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- 24-NA-139: Replace fuel pump driver control module for no start, stalling, loss of power with P023F/P129F
- PIE0730: Engineering information request: MIL, no start and/or stall with P129F (Equinox, Terrain)
- PIP5964C: Replace K111 FPDCM if no start, stalling, loss of power etc. are verified with P023F or P129F
- Fuel Pump Power Control Module Internal Short (GM TechLink)
- 2023 Integra Owner's Manual: Indicator, Coming On/Blinking
- 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