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Home >> Jeep >> 2008 >> Commander Overland, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Cluster - Electrical Diagnostics >> Instrument Cluster - Electrical Diagnostics >> DTC Troubleshooting >> U1109-Lost Communication With Lin Steering Wheel Controls >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 

    Turn the ignition on.

    With the scan tool, record and erase DTCs.

    Wait 30 seconds.

    With the scan tool, read DTCs.

    Is this DTC active? 

    Yes 

    1. Go To  2.

    No 

    1. The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
    2. Perform BODY VERIFICATION TEST .
  2. (D500) LIN BUS CIRCUIT OPEN 

    Turn the ignition off.

    Disconnect the Cluster C1, harness connector.

    Disconnect the Steering Control Module C1 and C2 harness connectors.

    Measure the resistance of the (D500) LIN Bus circuit between the Cluster and the Steering Control Module C1 and C2 harness connectors.

    Is the resistance above 10K ohms? 

    Yes 

    1. Repair the (D500) LIN Bus circuit for an open.
    2. Perform BODY VERIFICATION TEST .

    No 

    1. Replace the Steering Control Module in accordance with the service information.
    2. Perform BODY VERIFICATION TEST .
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