Powertrain
generic / SAE
P05BA
Restraint Deployment Signal Circuit High
Same as P05B8 with the signal shorted to supply. 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 / BA
Possible causes
- Signal shorted to supply high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–500 €
- Estimated time: 0.6–2 h
- Component: restraint signal wiring
- MIL / check engine light
Sources
References
sae:J2012