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Home >> Fiat >> 2016 >> 500 Turbo, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 ((Regenerative Brake Controller (RBC) - Electrical Diagnostics - 500 - Electric)) >> DTC Troubleshooting >> U1200-00-Lost Communication With Power Inverter Module >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. VERIFY THE DTC IS ACTIVE 
    1. Turn the ignition on.
    2. Using the scan tool, read RBC DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

  2. VERIFY THAT THE POWER INVERTER MODULE (PIM) IS ACTIVE ON THE BUS 
    1. Using the scan tool, select Network Diagnostics.
    2. Verify that the PIM is active on the bus.

      Is the PIM active on the bus?

      Yes 

      • Go To  3

      No 

  3. REGENERATIVE BRAKE CONTROLLER (RBC) 
    1. Turn the ignition off.
    2. Replace the Regenerative Brake Controller (RBC) in accordance with service information. Refer to CONTROLLER, REGENERATIVE BRAKE (RBC), REMOVAL .
    3. Perform the RBC VERIFICATION TEST. Refer to STANDARD PROCEDURE .
    4. Turn the ignition on.
    5. Using the scan tool, read ABS DTCs.

      Does the DTC remain active?

      Yes 

      No 

      • Test complete.