Powertrain
generic / SAE
P276C
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High
The motor supply voltage of the second auxiliary transmission fluid pump is above the operating range.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 6C
Possible causes
- Alternator regulator failed to limit output high
- Wiring shorted to a higher-voltage circuit low
- Connector pins corroded - high contact resistance 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: 150–1000 €
- Estimated time: 1–3.5 h
- Component: aux trans pump b
- Component: supply circuit
- Component: charging system
- MIL / check engine light
Sources
References
sae:J2012