B2105

B2105-IGNITION RUN/START 1 CONTROL CIRCUIT HIGH





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

- Set Condition:
The Totally Integrated Power Module (TIPM) detects a short to voltage in the run/start relay coil control circuit.





1. CHECK FOR ACTIVE DTC
1. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 30 seconds.
2. With the scan tool, read the active DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. If the DTC is stored, check for an intermittent condition. Inspect the Run/Start Relay (22) for proper fit. Look for pushed out or corroded terminals at the relay socket.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK THE RUN/START RELAY (22)
1. Turn the ignition off.
2. Remove the Run/Start Relay (22) and substitute it with a known good relay.
3. Start the engine.
4. Allow the engine to idle for one minute.
5. With the scan tool, read the active DTCs.

Does the scan tool display DTC: B2105-IGNITION RUN/START 1 CONTROL CIRCUIT HIGH?

Yes

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Run/Start Relay (22).
- Perform the BODY VERIFICATION TEST. Body Verification Test.