Powertrain
generic / SAE
P05A8
Active Grille Air Shutter A Supply Voltage Circuit High
Same as P05A6 with supply voltage above the plausible range. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / A8
Possible causes
- Supply voltage above design range high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–250 €
- Estimated time: 0.4–1.4 h
- Component: active grille actuator a
- MIL / check engine light
Sources
References
sae:J2012