Powertrain
generic / SAE
P033B
Knock/Combustion Vibration Sensor D Circuit Range/Performance
Knock sensor D signal is in electrical range but plausibility check fails — typically a loose mounting, wrong torque, or sensor element drift.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number3 / 3B
Possible causes
- Sensor loose high
- Gateway module routing CAN messages incorrectly low
- CAN terminating resistor (120 Ω) drifted out of spec low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 50–400 €
- Estimated time: 0.5–2 h
- Component: knock sensor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012