OBD-II code · Powertrain (generic)
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.
Is it safe to drive with P05A7?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySupply voltage low
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Active Grille Actuator A, Active Grille Supply Relay
Related codes
- P05B6Active Grille Air Shutter B Supply Voltage Circuit Low
- P05A4Active Grille Air Shutter A Control Circuit High
- P05A5Active Grille Air Shutter A Control Circuit Low
- P05A6Active Grille Air Shutter A Supply Voltage Circuit Open
- P05A8Active Grille Air Shutter A Supply Voltage Circuit High
- P05A9Active Grille Air Shutter B Position Sensor Circuit
- P05AAActive Grille Air Shutter B Position Sensor Range or Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.