What is the P2135 error code?

The engine control module monitors redundant position signals to provide fault-tolerant plausibility verification. Redundant position sensors transmit complementary, offset, or parallel signal tracks; code P2135 sets when the signal correlation between the monitored position tracks exceeds allowable deviation limits during designated evaluation intervals according to the system's plausibility-monitoring strategy. The exact signal direction, tracking ratio, and correlation tolerance vary by manufacturer design.

What does P2135 mean?

Code P2135 means the control module has detected that the redundant position signals monitored by the specific vehicle's throttle/pedal control architecture do not maintain their expected relationship with one another. Depending on the vehicle, the monitored correlation may involve throttle-position tracks, pedal-position tracks, or another manufacturer-defined redundant signal relationship used to verify position plausibility.

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