Powertrain
generic / SAE
P27E4
Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit Range/Performance
The control circuit for the auxiliary transmission fluid pump control valve reports a circuit range/performance condition. Pump pressure regulation cannot be commanded as expected.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / E4
Possible causes
- Coil resistance out of range medium
- High-resistance contact in connector medium
- Sensor element aged beyond calibration window 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 transmission pump control valve
- Component: wiring harness
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012