Fault-Code Library · Turbocharging
P0236: Turbo boost sensor range / performance
The charge-pressure signal is outside the expected range or disagrees with operating conditions.
Common symptoms
- •Reduced power
- •Inconsistent boost
- •Smoke
- •Engine warning light
Likely causes
- •Contaminated pressure sensor
- •Charge-air leak
- •Wiring fault
- •Turbo control problem
First checks
- •Compare boost reading with atmospheric pressure engine-off
- •Inspect charge hoses
- •Check sensor contamination and wiring
Important
Confirm sensor plausibility before carrying out repeated full-load boost tests.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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