Powertrain
generic / SAE
P0C1B
Electric/Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High
The auxiliary transmission fluid pump control module reports internal temperature above the protection threshold.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberC / 1B
Possible causes
- Sustained pump load high
- Ambient temperature too high medium
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: aux trans pump control module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012