TCM-0039

TCM-0039 Gear-Shift position sensor





Condition





The gear-shift position sensor signals provide the Transmission Control Module (TCM) with data on the gear selector position. This is done by grounding a combination of signals A, B, C and PA inside the gear position sensor. Diagnostic Trouble Code (DTC) TCM-0039 is stored if the Transmission Control Module (TCM) registers an unacceptable combination of A, B, C and PA for a period of 10 seconds as shown below.

Substitute value
- The control module "Limp Home" program has been initiated.

Possible source
- Contact resistance in terminals.
- Short-circuit to supply voltage or ground in the signal cable.
- Open-circuit in the signal cable.
- Incorrectly adjusted gear-shift position sensor.
- Defective gear-shift position sensor.

Fault symptom[s]
- General orange warning lamp lit.
- Malfunction Indicator Lamp (MIL) lit.
- No lock-up function.
- Harsh gear shifting.
- No shifting.

Caution! The gear-shift position sensor will malfunction if there is a short-circuit to supply voltage.