Gear Selector Position Sensor, Gear Engaged

Component Diagram:

Circuit Diagram:

Gear Selector Position Sensor, Gear Engaged
The gear selector position sensor is mounted in the transmission casing. It contains the reversing light switch, starting interlock switch and switches which tell the control module which gear is engaged.

Position Sensor Internal Terminal Logic Table:

Principally, the gear selector position sensor is a position switch that is supplied with current via the +15 circuit. A number of slip contacts supply the sensor's outputs with current. Combinations of the A, B. C and PA terminals correspond to the current selector lever position (see table). The slip contacts may be either closed (ON) or open (OFF).

Incorrect decoding of the slip contacts will cause limp-home to activate.

Position Sensor Internal Terminal Relationship Table:

The table shows the relationship between the gear selector position sensor's internal terminals A, B. C and PA and the pins of connector Hi0-1 and those of the transmission control module.

To ensure that the control module receives accurate information, it is important for the sensor to be correctly adjusted. Special tool 8792467 should be used for adjusting the sensor.

Diagnostics
Faults on the gear position inputs will generate diagnostic trouble code P0705 and put the transmission in limp-home mode.