Circuit Description

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The transmission range (TR) switch is part of the park/neutral position switch assembly and is mounted on the transmission manual shaft. The TR switch is a multi-signal switch. The powertrain control module (PCM) supplies voltage to the TR switch on 7 signal circuits, P, R, N, D, I, L, and Forward Range. Each gear selector lever position grounds one or more of the signal circuits in a unique pattern. In order to determine the gear range selected by the driver, the PCM compares the voltage combination on the signal circuits to a TR switch combination table stored in memory. Refer to Transmission Range Switch Logic . The TR forward signal is grounded when the transmission range selector is in the D or I position.

When the PCM detects that the TR forward signal is open or shorted to voltage while driving, with the transmission range selector in the D or I position, DTC P0706 sets. DTC P0706 is a type B DTC.

Refer to Range Reference .