Totally Integrated Power Module (TIPM)

B2101-IGNITION RUN/START INPUT CIRCUIT LOW







- When Monitored:
With the ignition switch on.

- Set Condition:
The CAN Bus ignition status equals RUN, while hardwired ignition status equals OFF/LOCK.





1. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)

NOTE: Check all related fuses before proceeding with the diagnostic procedure.

1. Turn the ignition on.
2. Using the scan tool, read active DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded or contaminated terminals.
- Perform the BODY VERIFICATION TEST Body Verification Test.

2. (F20) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Turn the ignition on.
4. Using a 12-Volt test light connected to ground, probe the (F20) Ignition Switch output (Run-Start) circuit in the TIPM C7 harness connector.

Does the test light illuminate brightly?

Yes

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

No

- Go To 3

3. (A106) FUSED B+ OPEN OR SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the Ignition Switch harness connector.
3. Using a 12-Volt test light connected to ground, probe the (A106) Fused B+ circuit in the Ignition Switch harness connector.

Does the test light illuminate brightly?

Yes

- Go To 4

No

- Using the wiring diagram as a guide, repair the (A106) Fused B+ circuit for an open or short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. IGNITION SWITCH
1. Reconnect the Ignition Switch harness connector.
2. Using a 12-Volt test light connected to ground, backprobe the (F20) Ignition Switch output (Run-Start) circuit in the Ignition Switch harness connector.

Does the test light illuminate brightly?

Yes

- Repair the (F20) Ignition Switch output (Run-Start) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Ignition Switch.
- Perform the BODY VERIFICATION TEST. Body Verification Test.