P2806

P2806-TRANSMISSION RANGE SENSOR ALIGNMENT





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Transmission Range Sensor (TRS) is a multiple position selector switch which changes the signal path by redirecting a 12-volt signal source to seven different TRS signal circuits (P, R, N, D, 3, 2, 1) and also houses a Park/Neutral (P/N) switch circuit. These circuits are monitored by the Transmission Control Module (TCM) and used in conjunction with various pressure switches to validate proper operation of the transmission and diagnose any possible problem. In a normal operating mode, pressure switch 8, is in an "Open" state in P, R, or N. and in a "Closed" state in any forward gear (engine running). If the TCM detects all of shift lever positions registering "OPEN", the code will set and the PRNDL display will have all of the Shift Lever positions boxed. This DTC will not illuminate the MIL

When Monitored:
- Ignition on, engine running.
- Pressure Switch 8 is Open.

Set Condition:
- When the Transmission Control Module (TCM) detects all of the Shift Lever positions registering "OPEN" for the period of two seconds.






Always perform the AS68RC Pre-Diagnostic Troubleshooting procedure before proceeding. AS68RC Pre-Diagnostic Troubleshooting Procedure
CHECK FOR OTHER DTCs

NOTE: This DTC is supplemental and requires no diagnostic troubleshooting. Typically, if this code is set without P0706, P0707, or P0708 it is caused by the column shifter placement between gate stop positions, positioning the gear range indicator switch between gear positions for more than 2 seconds. Only diagnose the range sensor as instructed in P0706, P0707, or P0708 if they are present.

Are there any other TRS DTCs set?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.

No

- Clear DTC.
- Perform AS68RC TRANSMISSION VERIFICATION TEST AS68RC Transmission Verification Test.