DTC P0812 Acura
Open in Transmission Range Switch ATP RVS Switch Circuit
Open in Transmission Range Switch ATP RVS Switch Circuit
Description
If the R switch is OPEN with the shift lever in R, the PCM detects a switch OPEN failure. The RVS signal is detected but the R switch signal is not detected for at least 2 seconds. The execution time is continuous depending on the driving pattern. NOTE: This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
Cause and Solution
Faulty transmission range switch
Poor connections and loose terminals at the transmission range switch and the PCM
Open in the wire between PCM and the transmission range switch
Open in the wire between transmission range switch and ground, or poor ground
PCM needs to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P0812
- Brand: Acura