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Home >> Jeep >> 2008 >> Compass Limited, FWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC U1418, Checking For Intermittent Condition, System Checks, Component Checks >> U1418-Implausible Right Wheel Distance Signal Received >> Diagnostic Test

Diagnostic Test

  1. ACTIVE DTC 
    NOTE: For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

    Ignition on, engine not running.

    With a scan tool, select View DTCs.

    Is the status Active for this DTC? 

    Yes 

    1. Go To  2.

    No 

    1. Refer to the *CHECKING FOR AN INTERMITTENT CONDITION  Diagnostic Procedure.
    2. Perform PCM VERIFICATION TEST .
  2. ABS MODULE IS ACTIVE ON THE CAN C BUS 

    Using the Network Review Screen on the scan tool, verify that the ABS Module is active on the bus.

    Is the ABS Module active on the bus? 

    Yes 

    1. Go To  3.

    No 

    1. Refer to DIAGNOSIS AND TESTING for No Response diagnostic procedures.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  3. DTCS STORED OR ACTIVE IN THE ABS MODULE 

    With the scan tool, select View DTCs in the ABS Module.

    Are any DTCs active or stored in the ABS Module? 

    Yes 

    1. Refer to ABS ELECTRICAL DIAGNOSTICS and perform the appropriate diagnostic procedure.
    2. Perform ABS VERIFICATION TEST .

    No 

    1. Go to  4.
  4. ACTIVE DTCS IN THE TIPM 

    With the scan tool, select ECU View and select the TIPM.

    With the scan tool, select View DTCs in the TIPM.

    Are any ABS related DTCs active or stored in the TIPM? 

    Yes 

    1. Replace the ABS Module in accordance with the Service Information
    2. Perform PCM VERIFICATION TEST .

    No 

    1. Replace and program the Powertrain Control Module per Service Information.
    2. Perform PCM VERIFICATION TEST .
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