Powertrain
generic / SAE
P0C23
Electric/Auxiliary Transmission Fluid Pump Control Module Circuit/Open
The auxiliary transmission fluid pump control module circuit reports a circuit/open condition.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberC / 23
Possible causes
- Open in module circuit high
- Open module input medium
- Pin pushed back out of connector body low
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: medium
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1–5 h
- Component: aux trans pump control module
- Component: wiring harness
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012