OBD-II code · Powertrain (generic)
P059C Active Grille Air Shutter A Position Sensor Circuit High
Same as P059A with the signal 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.
Is it safe to drive with P059C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal shorted to supply
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Active Grille Position Sensor A
Related codes
- P05ABActive Grille Air Shutter B Position Sensor Circuit High
- P0599Thermostat Heater Control Circuit High
- P059AActive Grille Air Shutter A Position Sensor Circuit
- P059BActive Grille Air Shutter A Position Sensor Range or Performance
- P059DActive Grille Air Shutter A Position Sensor Circuit Low
- P059EActive Grille Air Shutter A Position Sensor Circuit Intermittent
- P059FActive Grille Air Shutter A Performance Stuck Off
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.