DTC B2617: Courtesy Light Circuit Low: Notes
TBC module monitors circuit No. 690 (Gray/Black wire) to determine when courtesy lights are on. See WIRING DIAGRAMS . When circuit is shorted to ground and interior light request is inactive, DTC will set.
Conditions for setting DTC:
- Circuit No. 1732 (Orange wire) inactive.
- Circuit No. 690 (Gray/Black wire) is shorted to ground and TBC module is commanding courtesy light relay inactive.
- System voltage 9-16 volts.
- Conditions met for .5 second.