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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 312 (Wireless Ignition Module (Win) - Electrical Diagnostics) >> DTC Troubleshooting >> U0236-Lost Communication With Column Lock Module >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. INTERMITTENT DTC 
    1. With the scan tool, erase the WIN DTCs.
    2. Turn the ignition off.
    3. Arm the VTSS and wait one minute.
    4. Disarm the VTSS and turn the ignition on.
    5. With the scan tool, read the active DTCs.

      Does the scan tool display: U0236-LOST COMMUNICATION WITH COLUMN LOCK MODULE?

      Yes 

      • Go to step  2

      No 

  2. (A917) FUSED B(+) CIRCUIT OPEN 
    Fig 1: Checking Fused B(+) Circuit For Open
    GC0098068Courtesy of CHRYSLER LLC
    1. Gain access to the Steering Column Lock Module.
    2. Disconnect the Steering Column Lock Module connector.
    3. Using a 12-volt test light connected to ground, check the (A917) Fused B(+) circuit in the Steering Column Lock Module connector.

      Does the test light illuminate brightly?

      Yes 

      • Go to step  3

      No 

  3. (F892) IGNITION SWITCH OUTPUT (KEY-IN) CIRCUIT OPEN 
    Fig 2: Checking Ignition Switch Output (Key-In) Circuit For Open
    GC0098061Courtesy of CHRYSLER LLC
    1. Make sure the ignition key is fully inserted into the ignition switch.
    2. Using a 12-volt test light connected to ground, check the (F892) Ignition Switch Output (Key-In) circuit in the Steering Column Lock Module connector.
    3. Remove and insert the key several times while observing the test light.

      Does the test light illuminate brightly and then go out as the key is inserted and removed?

      Yes 

      • Go to step  4

      No 

  4. (Z910) GROUND CIRCUIT OPEN 
    Fig 3: Checking Ground Circuit For Open
    GC0098069Courtesy of CHRYSLER LLC
    1. Using a 12-volt test light connected to 12-volts, check the (Z910) Ground circuit at the Steering Column Lock Module connector.

      Does the test light illuminate brightly?

      Yes 

      • Go to step  5

      No 

  5. (D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN 
    Fig 4: Checking COM-LIN Tire Pressure Monitor LAN Circuit For Open
    GC0120587Courtesy of CHRYSLER LLC
    1. Disconnect the WIN harness connector.
    2. Measure the resistance of the (D508) COM-LIN Tire Pressure Monitor LAN circuit between the WIN and the Steering Column Lock Module connectors.

      Is the resistance below 1.0 ohms?

      Yes 

      No