Powertrain
generic / SAE
P05A7
Active Grille Air Shutter A Supply Voltage Circuit Low
Same as P05A6 with supply voltage below 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 / A7
Possible causes
- Supply voltage low high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–250 €
- Estimated time: 0.4–1.4 h
- Component: active grille actuator a
- Component: active grille supply relay
- MIL / check engine light
Sources
References
sae:J2012