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Home >> Fiat >> 2019 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 46 ((Regenerative Brake Controller (RBC) - Electrical Diagnostics - 500 - Electric)) >> Standard Procedure >> RBC Verification Test >> RBC Verification Test

RBC Verification Test

WARNING: This page is about a different variant/trim than selected.
WARNING:

On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury. Refer to HIGH-VOLTAGE POWER DOWN PROCEDURE .

WARNING:

To avoid possible serious or fatal injury, check brake capability is available before road testing.

NOTE:

If the Regenerative Brake Controller (RBC) was replaced, all the RBC routines must be performed in the correct order. Refer to CONTROLLER, REGENERATIVE BRAKE (RBC), REMOVAL .

To validate that the repair(s) fixed the vehicle, perform the following steps.

  1. Turn the ignition off.
  2. Connect all previously disconnected components and connectors.
  3. Verify all accessories are turned off and the battery is fully charged.
  4. Verify that the ignition is ready, with the scan tool, erase all Diagnostic Trouble Codes (DTCs) from All modules. Start the engine and allow it to run for two minutes and fully operate the system that was indicating the failure.
  5. Turn the ignition off and wait five seconds. Turn the ignition on and using the scan tool, read DTCs from all modules.
  6. If any DTCs are present, perform the appropriate diagnostic procedure.

    Refer to DTC TROUBLESHOOTING .

  7. NOTE: For Sensor Signal Plausibility and Pump Motor faults, the RBC must verify that the failure conditions are no longer present in the current ignition cycle before it can turn off the failure lamp(s). This may require the vehicle to be driven for several minutes above 15 k/mh (9 mph). Once it has been determined that the failure condition is no longer present the lamp(s) will be turned off. 
    8. WARNING:

    To avoid possible serious or fatal injury, check brake capability is available before road testing.

  8. If there are no DTCs present after turning ignition on, road test the vehicle for at least five minutes.
  9. Again, with the scan tool read DTCs. If any DTCs are present, for the diagnostic procedure and troubleshoot the new or recurring DTC. Refer to DTC TROUBLESHOOTING .
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