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Home › Buick › 2015 › Verano Base › Repair and Diagnosis › Electrical › Instrument Panel System Displays And Gauges › Diagnostic Information and Procedures › Speedometer and/or Odometer Malfunction › Circuit/System Testing

Circuit/System Testing

NOTE:
  • Circuit/System Verification must be performed before proceeding with Circuit/System Testing.
  • If there are multiple modules not original to the vehicle and are not new correctly configured service parts, SPS may not be able to proper read or recover the vehicle odometer value. Follow government rules and documentation (including vehicle identification) regarding inaccurate/unknown odometer values.

Instrument Cluster is Showing "----" (Dashes) 

Correcting VIN mismatch - odometer is still Inactive.

  1. Verify the vehicle odometer status with a scan tool. The reading should be Inactive.
    • If the reading is Active 

      Refer to correcting VIN mismatch - odometer Active.

    • If the reading is Inactive 
  2. Using the scan tool, verify the BCM VIN matches the vehicle VIN placard.
    • If the VIN does not match 

      Reprogram the BCM, then proceed to Step 3.

    • If the VIN matches 
  3. Using the scan tool, verify the instrument cluster VIN matches the vehicle VIN placard.
    • If the VIN does not match 

      Reprogram the instrument cluster. Then proceed with step 4.

    • If the VIN matches 
  4. Ignition ON, verify the instrument cluster is displaying the correct value.
    • If the instrument cluster is still displaying "----" (dashes) 

      Replace the P16 Instrument Cluster.

Instrument Cluster is Showing "----" (Dashes) 

Correcting VIN mismatch - odometer is Active.

  1. Verify the vehicle odometer status with a scan tool. The reading should be Inactive.
    • If the reading is Inactive 

      Refer to Correcting VIN mismatch - odometer Inactive.

    • If the reading is Active 
  2. Using the scan tool, verify the instrument cluster VIN matches the vehicle's VIN placard.
    • If the VIN does not match 

      Reprogram the Instrument Cluster. Then proceed with step 3.

    • If the VIN matches 
  3. Perform the BCM setup procedure in SPS.
  4. Ignition ON, verify the instrument cluster is displaying the correct value.
    • If the instrument cluster is still displaying "----" (dashes) 

      Replace the P16 Instrument Cluster.

    • If instrument cluster is displaying the correct value 
  5. All OK.
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