Run/Crank Relay
WARNING: This page is about a different car, the 2004 Saturn Ion Red Line, 2004 Saturn Ion 3, 2004 Saturn Ion 2, and 2004 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.
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