Transmission Range Switch (Park, Reverse, Neutral, Drive)

Transmission Range Switch (Park, Reverse, Neutral, Drive) Description

The transmission range switch on the transmission passes gear selection signals to the TCM. The signals are interpreted by the TCM for the correct gear selection and the appropriate control signals are output to an electro-hydraulic valve block in the transmission.

There are two diagnostic checks of the transmission range switch, an error is detected if:
1. The ignition supply is greater than 9V and an incorrect position code has been received.
2. The ignition supply is greater than 9V, the engine is cranking and the position code does not indicate a park or neutral state.

For the diagnostic table, please refer to the individual code (i.e. P0705).

If the above table does not include details of the following enabling conditions: - AT, ECT, vehicle speed range, and time after engine start-up then the state of these parameters has no influence upon the execution of the monitor.