Code result
P033A
Knock/Combustion Vibration Sensor D Circuit
High severity
What it means
A general electrical fault on knock sensor D — used on engines with multiple knock sensors (one per bank or per cylinder pair).
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor failed
highOne of the most commonly reported causes for this code — check this first.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
CAN terminating resistor (120 Ω) drifted out of spec
lowLess common, but worth ruling out after the more likely causes.
Related help
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