P0B0DElectric/Auxiliary Transmission Fluid Pump Motor Control Module
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0B0D is an internal fault of the module that drives the auxiliary pump motor. GM documents it for the auxiliary transmission pump controller (ATPC) in its 2011 and 2014 hybrid tables and for the 2016 Cadillac ELR: it checks processor integrity, such as SPI hardware faults or a wrong seed and key between processors, with more than 9.5 V supply; 28 failures out of 32 samples in a 6.25 ms loop, detected within about 200 ms, set a Type A fault. Stellantis lists P0B0D-00 on the 2021-25 Jeep Wrangler 4xe and 2022-25 Grand Cherokee 4xe with the 8P75PH plug-in transmission (TSB 21-038-25, revised 21-041-26): MIL and limp mode, sometimes with U0287; the fix is a new in-pan electric pump. U0287 is lost communication with the pump module, P0C23 to P0C25 its circuit.
- What you may notice
- MIL on
- Transmission in limp mode
- Possibly lost communication with the pump module (U0287)
- Likely causes
- LikelyElectric pump with integrated control electronics failed (Jeep 4xe 8P75PH)
- PossibleProcessor or memory fault inside the pump control module
- RareSupply voltage dips or poor ground at the module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €400 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.