Powertrain
generic / SAE
P05B6
Active Grille Air Shutter B Supply Voltage Circuit Low
Same as P05A7 on shutter B. 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 / B6
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 b
- MIL / check engine light
Sources
References
sae:J2012