B2102

B2102-IGNITION RUN/START INPUT HIGH





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

- When Monitored:
With the ignition switch on.

- Set Condition:
The Wireless Control Module (WCM) has detected the ignition switch input voltage above a calibrated value.





1. DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT

NOTE: Diagnose any related Powertrain DTCs before continuing.

1. Using the scan tool, read and record DTCs.
2. Using the scan tool, clear DTCs.
3. Perform five ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.
4. Using the scan tool, read DTCs.

Does the DTC reset?

Yes

- Go To 3

No

- Go to 2

2. INTERMITTENT CONDITION

NOTE: Check for any of the follow conditions:
- Poor wire to terminal connection
- Corroded terminals
- Backed out or loose terminals
- Broken wire internal to the insulation
- Dirty (partial) module ground

1. With the ignition on, wiggle the related wires.
2. Using a scan tool, read DTCs.

Does the DTC reset?

Yes

- Repair the wiring as necessary.
- Perform the WIRELESS CONTROL MODULE (WCM) VERIFICATION TEST. Wireless Control Module (WCM) Verification Test

No
DTC is not active at this time. Test complete.

3. FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO BATTERY VOLTAGE





NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Make sure the module has a good ground before continuing.

1. Turn the ignition off.
2. Disconnect the WCM harness connector.
3. Using a 12-volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the WCM harness connector.

Does the test light illuminate brightly?

Yes

- Repair the Fused Ignition Switch Output (Run-Start) circuit for a short to voltage.
- Perform the WIRELESS CONTROL MODULE (WCM) VERIFICATION TEST. Wireless Control Module (WCM) Verification Test

No

- Replace and program the Wireless Control Module.NOTE: If this vehicle is equipped with a Steering Column Lock Module, it must be replaced along with the WCM.

- Perform the WIRELESS CONTROL MODULE (WCM) VERIFICATION TEST. Wireless Control Module (WCM) Verification Test