P0706

DTC P0706

Circuit Description

The transmission range (TR) switch is located on the selector shaft and informs the transmission control module (TCM) of the current selector lever position P-R-N-D-3-2-1.

The selector lever position is transmitted to the TCM in encoded form along 4 lines. The encoding is such that malfunctions in the connecting lead are identified.

The TR switch is located on the selector shaft, which is connected to the selector lever via a pull cable. In addition, the TR switch controls the starter interlock, the reverse lights and the selector lever position indicator on the instrument panel.

Conditions for Setting the DTC

* TR switch stuck to closed

* TR switch wiring harness shortage to ground

* TR switch wiring harness shortage to power

* Immediately after the above condition occurs

Action Taken When the DTC Sets

* The hold lamp will blink.

* The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer.

* Adopt Emergency/ Substitute mode and constant 4th gear.

Conditions for Clearing the Hold Lamp/DTC

* The hold lamp will turn OFF when the malfunction has not occurred after 3-ignition cycles.

* A history DTC will clear after 40 consecutive warm-up cycles without a fault.

* Using a scan tool can clear history DTCs.

Diagnostic Aids

When DTC P0706 sets, the possible cause of TR switch