Powertrain
generic / SAE
P03DD
Cylinder 8 Pressure Sensor Circuit Low
Cylinder 8 pressure sensor below lower plausibility — short to ground. 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 / number3 / DD
Possible causes
- Short to ground high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
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References
sae:J2012