LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Automatic Transaxle - 4T80-E - DTC P1811 To DTC P2764) >> DTC P1915 >> Circuit Description

Circuit Description

WARNING: This page is about a different variant/trim than selected.

The transmission internal mode switch (IMS) is a sliding contact switch attached to the selector detent inside the transmission side cover. The 4 inputs to the transmission control module (TCM) indicate the position of the transmission range selector. The input voltage level at the TCM is high, B+, when the IMS is open and low when the switch is closed to ground. The 4 input parameters represented are Signals A, B, C and P - Parity. Refer to Transmission Internal Mode Switch Logic .

If the TCM detects a combination of IMS signals that are invalid, or a transitional state between gear selector positions, while attempting to start the vehicle, then DTC P1915 sets. DTC P1915 is a type B DTC.

scientia non olet · About LEMON Manuals