B2102

B2102-IGNITION RUN/START INPUT HIGH





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

- When Monitored:
With the ignition on.

- Set Condition:
If the Wireless Control Module (WCM) detects ignition switch input voltage is above a calibrated value.





1. VERIFY THAT THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

CAUTION: Diagnose and repair all Powertrain DTCs before continuing.

1. Turn the ignition on.
2. Using the scan tool, record and erase the WCM 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 the WCM DTCs.

Does the DTC reset?

Yes

- Go To 2

No

- Go To 3

2. CHECK THE (F20) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT FOR A SHORT TO BATTERY VOLTAGE





NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Make sure that 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 (F20) Fused Ignition Switch Output (Run-Start) circuit in the WCM harness connector.

Does the test light illuminate brightly?

Yes

- Repair the (F20) Fused Ignition Switch Output (Run-Start) circuit for a short to voltage.
- Perform the WCM VERIFICATION TEST. Wireless Control Module (WCM) Verification Test.

No

- Replace and program the Wireless Control Module.
- Perform the WCM VERIFICATION TEST. Wireless Control Module (WCM) Verification Test.

3. CHECK THE WIRE HARNESS FOR CAUSE OF INTERMITTENT CONDITION

NOTE: Check for all of the following 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 the scan tool, read DTCs.

Does the DTC reset?

Yes

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

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