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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Electronic Control Modules - Electrical Diagnostics) >> Electronic Control Modules - Electrical Diagnostics >> DTC Troubleshooting >> *No Response From Win (Wireless Ignition Node) >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2008 Jeep Commander. However, it is still accessible from the selected car via links, so may be relevant.
  1. TEST FOR INTERMITTENT CONDITION 

    Turn the ignition on.

    NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

    With the scan tool, select ECU view.

    NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

    Does the scan tool display a red X next to the module? 

    Yes 

    1. Go To step  2.

    No 

    1. The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
  2. (A106) FUSED B(+) CIRCUIT OPEN OR SHORTED 
    Fig 1: Checking (A106) Fused B(+) Circuit At WIN Harness Connector
    GC0071825Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the WIN harness connector.

    Using a 12-volt test light connected to ground, check the (A106) Fused B(+) circuit at the WIN harness connector.

    Does the test light illuminate brightly? 

    Yes 

    1. Go To step  3.

    No 

    1. Repair the (A106) Fused B(+) circuit for an open or short.
    2. Perform WIN VERIFICATION TEST .
  3. (Z18) GROUND CIRCUIT OPEN 
    Fig 2: Checking (Z18) Ground Circuit
    GC0071826Courtesy of CHRYSLER LLC

    Using a 12-volt test light connected to 12-volts, check the (Z18) ground circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Go To step  4.

    No 

    1. Repair the (Z18) ground circuit for an open.
    2. Perform WIN VERIFICATION TEST .
  4. (F20) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED 
    Fig 3: Checking (F20) Fused Ignition Switch Output Circuit
    GC0071827Courtesy of CHRYSLER LLC

    Turn the ignition on.

    Using a 12-volt test light connected to ground, check the (F20) Fused Ignition Switch Output circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Go To step  5.

    No 

    1. Repair the (F20) Fused Ignition Switch Output circuit for an open or short.
    2. Perform WIN VERIFICATION TEST .
  5. (D65) CAN C BUS (+) CIRCUIT OPEN 
    Fig 4: Measuring Resistance Of (D65) CAN C Bus (+) Circuit Between FCM Connector And WIN Harness Connector
    GC0071828Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the FCM C1 harness connector.

    Measure the resistance of the (D65) CAN C Bus (+) circuit between the FCM connector and the WIN harness connector.

    Is resistance below 5.0 ohms? 

    Yes 

    1. Go To step  6.

    No 

    1. Repair the (D65) CAN C Bus (+) circuit for an open.
    2. Perform WIN VERIFICATION TEST .
  6. (D64) CAN C BUS (-) CIRCUIT OPEN 
    Fig 5: Measuring Resistance Of (D64) CAN C Bus (-) Circuit Between FCM Connector And WIN Harness Connector
    GC0071829Courtesy of CHRYSLER LLC

    Measure the resistance of the (D64) CAN C Bus (-) circuit between the FCM connector and the WIN harness connector.

    Is resistance below 5.0 ohms? 

    Yes 

    1. Replace the Wireless Ignition Node in accordance with the service information.
    2. Perform WIN VERIFICATION TEST .

    No 

    1. Repair the (D64) CAN C Bus (-) circuit for an open.
    2. Perform WIN VERIFICATION TEST .
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