Question 1

What is the P2135 error code?

Accepted Answer

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.

Question 2

What does P2135 mean?

Accepted Answer

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.