Powertrain
generic / SAE
P258D
Vacuum Pump Control Circuit A High
The vacuum pump control circuit reads stuck high — short to battery voltage or open coil/return. The driver cannot pull the line low to start the pump.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 8D
Possible causes
- Control wire shorted to battery voltage high
- Open pump motor winding medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–700 €
- Estimated time: 0.5–2.5 h
- Component: vacuum pump
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012