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Home >> Jeep >> 2015 >> Compass Limited, AWD, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Wireless Control Module (WCM) - Electrical Diagnostics) >> DTC Troubleshooting >> B2102-Ignition Run/Start Input High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2012 Jeep Patriot and 2012 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
  1. DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT 
    NOTE:

    Diagnose any related Powertrain DTCs before continuing.

    1. With a scan tool, read and record DTCs.
    2. With the scan tool, clear DTCs.
    3. Perform 5 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 

      No 

      • DTC is not active at this time. Test complete.
  3. FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO BATTERY VOLTAGE 
    Fig 1: Checking Fused Ignition Switch Output (Run-Start) Circuit For A Short To Battery
    GC0100385Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    A dirty (partial) ground can cause abnormal conditions within a system. Ensure 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 

      No