Diagnostic Trouble Code (DTC) Information TCM-P081C49

Condition 

There is a hall sensor installed internally in the gear selector assembly's control module. The hall sensor is affected by a permanent magnet located on the gear selector assembly. hen the gear selector is moved out of position P, with the ignition on, the hall sensor is deactivated and the shift-lock solenoid is deactivated. his is done to prevent the gear selector catching in position N.

With the ignition off and the gear selector in position P, the gear selector is locked mechanically as a result of the power to the solenoid having been cut. The gear selector is also locked in ignition positions I and 0.

The diagnostic trouble code (DTC) is stored if the control module detects that:

• The solenoid for the shift-lock is activated in lever position P and at the same time the Gear selector module (GSM) registers that the hall sensor is inactive despite the lever being moved to R in the same operating cycle.
• Transmission control module (TCM) informed gear position D and the optical sensor has been active for 10 seconds.
• Transmission control module (TCM) has indicated gear position R, N or D and the Hall sensor has been active for 10 seconds.

The control module's test for the diagnostic trouble code (DTC) starts in the event of:

• Ignition switch position II.

Substitute Value 

• None.

Possible Source 

• Internal fault in gear selector module (GSM).

Fault symptom[s] 

• Text window and warning symbol/Yellow symbol and text message