Powertrain
generic / SAE
P26D6
Engine Coolant Pump Clutch Control Circuit / Open
The mechanical clutch on a belt-driven coolant pump (used to disengage the pump for fast warm-up) cannot be driven. Pump always engaged so warm-up takes longer.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / D6
Possible causes
- Open coil in clutch solenoid high
- Broken control wire 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: medium
- DIY: shop recommended
- Estimated cost: 150–1000 €
- Estimated time: 1–3.5 h
- Component: coolant pump clutch
- Component: clutch solenoid
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012