Powertrain
generic / SAE
P276B
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit Low
The motor supply voltage of the second auxiliary transmission fluid pump is below the operating range.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 6B
Possible causes
- High-resistance battery feed high
- Weak battery sags under pump current medium
- 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: 120–800 €
- Estimated time: 0.8–3 h
- Component: aux trans pump b
- Component: supply circuit
- Component: battery
- MIL / check engine light
Sources
References
sae:J2012