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Home >> Fiat >> 2017 >> 124 Spider Classica, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Warning Systems >> (Blind Spot Module (BSM) - Electrical Diagnostics) >> DTC Troubleshooting >> U1A4B-97 Control Module Processor B-Component Or System Operation Obstructed Or Blocked >> Diagnostic Test
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Diagnostic Test

  1. CHECK REAR BUMPER SURFACE 
    1. Dirt
    2. Foreign bodies (reflecting objects) stuck

      Are there any foreign bodies or dirt on rear bumper?

      Yes 

      • Go to Step  2.

      No 

      • Remove the foreign bodies (reflecting objects) or dirt, then go to Step  4.
  2. CHECK THE AREA NEAR THE BLIND SPOT MODULE, RIGHT SIDE 
    1. Dirt
    2. Foreign bodies (reflecting objects) stuck

      Are there any foreign bodies or dirt on the Blind Spot Module, right side?

      Yes 

      • Remove the foreign bodies (reflecting objects) or dirt, then go to Step  4.

      No 

      • Go to Step  3.
  3. CHECK THE REPAIR HISTORY OF REAR BUMPER 
    1. Ensure that the rear bumper wasn't previously repaired or repainted.

      Was repair or repainting performed according to manufacturer specifications?

      Yes 

      • Go to Step  4.

      No 

      • Replace the rear bumper and then move on to Step  4.
  4. CHECK CORRECT OPERATION OF THE BLIND SPOT MODULE, RIGHT SIDE 
    1. Connect the diagnosis equipment and perform Blind Spot Module (right side) erase DTC procedure.
    2. equal or higher than 30 km/h (19 mph).
    3. Check whether the DTC is still present.

      Is the DTC still present?

      Yes 

      • Repeat the checks from Step  1 .
      • Replace the Blind Spot Module, right side.

      No 

      • End of diagnosis.