Diagnostic Test
- DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT NOTE:
Diagnose any related Powertrain DTCs before continuing.
- 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
- With the ignition on, wiggle the related wires.
- Using a scan tool, read DTCs.
Does the DTC reset?
Yes
- Repair the wiring as necessary.
- Perform the WCM VERIFICATION TEST. Refer to STANDARD PROCEDURE - WIRELESS CONTROL MODULE (WCM) VERIFICATION .
No
- DTC is not active at this time. Test complete.
- FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN
NOTE:
Check the related fuses to the Fused Ignition Switch Output (Run-Start) circuit. If the fuse is found to be open, repair the circuit for a shorted condition.
- Turn the ignition off.
- Disconnect the WCM harness connector.
- Turn the ignition on.
- Using a 12 volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the SKREEM harness connector.
Does the test light illuminate brightly?
Yes
- Go to 4.
No
- Repair the Fused Ignition Switch Output (Run-Start) circuit for an open.
- Perform the WCM VERIFICATION TEST. Refer to STANDARD PROCEDURE - WIRELESS CONTROL MODULE (WCM) VERIFICATION .
- WCM NOTE:
A dirty (partial) ground can cause abnormal conditions within a system. Ensure the module has a good ground before continuing.
- Turn the ignition off.
- Reconnect the WCM connector
- Back probe the Fused Ignition Switch Output (Run-Start) circuit.
- Start the engine.
- Using the scan tool, view battery voltage under Data Display in the Engine category.
- Compare the voltage on the scan tool to the voltage reading on the voltmeter.
Is the voltage on the scan tool equal to the voltmeter reading +/-.5 volt?
Yes
- Replace and program the Wireless Control Module in accordance with the Service Information.
- Perform the WCM VERIFICATION TEST. Refer to STANDARD PROCEDURE - WIRELESS CONTROL MODULE (WCM) VERIFICATION .
No
- Repair the Fused Ignition Switch Output (Run-Start) circuit for high resistance.
- Perform the WCM VERIFICATION TEST. Refer to STANDARD PROCEDURE - WIRELESS CONTROL MODULE (WCM) VERIFICATION .