LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2017 >> LaCrosse Base >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P17B5: Transmission Range Control Module Ignition Switch Accessory Position >> Circuit/System Description

Circuit/System Description

The transmission range control module continuously monitors the voltage on the Ignition Accessory/Run circuit from the body control module (BCM). When the ignition is in the ACCESSORY or RUN position, the BCM sends a 12 V wake up signal to the control module. This wake up signal allows the control module to power up and start functioning before the engine is started.

scientia non olet · About LEMON Manuals