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Home >> Cadillac >> 2017 >> XT5 Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC P162B: Remote Vehicle Speed Limiting Signal Message Counter Incorrect >> Circuit/System Verification
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Circuit/System Verification

  1. Verify the vehicle is equipped with OnStar (RPO UE1) and DTC P162B is set
    • If the vehicle is not equipped with OnStar (RPO UE1) and DTC P162B is set 

      Replace the ECM.

    • If the vehicle is equipped with OnStar (RPO UE1) and DTC P162B is set 
  2. Perform the Remote Vehicle Speed Limiting Reset procedure with the scan tool.
  3. Verify DTC P162B is not set.
    • If DTC P162B is set 
    1. Reprogram the ECM. Refer to Control Module References .
    2. Verify the DTC does not set while operating the vehicle within the Conditions for Running the DTC.
      • If the DTC sets, replace the ECM. If the DTC continues to set after ECM replacement, replace the vehicle communication interface module.
      • If the DTC does not set
    3. All OK.
    • If DTC P162B is not set 
  4. All OK.
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