Fault-Code Library · Electronic throttle
P2135: Throttle position sensor correlation
The redundant throttle-position signals disagree beyond the permitted tolerance.
Common symptoms
- •Reduced-power mode
- •Poor or no throttle response
- •Unstable idle
- •Engine warning light
Likely causes
- •Throttle-body sensor failure
- •Connector contamination
- •Harness fault
- •Low system voltage
First checks
- •Graph both throttle-position signals
- •Inspect connector pins and wiring
- •Check battery voltage and throttle adaptation
Important
Unpredictable throttle response is a safety concern; avoid driving until the fault is understood.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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