Run/Crank Relay
The relay uses a hot at all times B+ power source derived from the underhood electrical center. The Run/Crank relay supplies a power signal to the following circuits when the a Run or Crank power mode is selected:
- Backup lamp circuit
- Electronic brake control module (EBCM)
- Engine control module (ECM)
- Ignition control module (ICM)
- Park neutral position switch
- Transmission circuit 1 and 2