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Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS
With M.U.T.-III SE
  1. Ignition switch OFF to ON.
  2. Perform self-diagnosis for "BCM".
Is any DTC detected?
Check the DTC. Refer to DTC IndexDTC Index.
.
 
2.CHECK CONNECTOR AND TERMINAL
  1. Ignition switch OFF.
  2. Disconnect BCM harness connector.
  3. Disconnect power steering control module harness connector.
  4. Check the connector for disconnection or looseness.
  5. Check the terminals for damage or loose connection with harness connector.
Is the inspection result normal?
.
Repair or replace harness, connector, or terminal, securely lock the connector.
 
3.PERFORM SELF-DIAGNOSIS
With M.U.T.-III SE
  1. Connect BCM harness connector.
  2. Connect power steering control module harness connector.
  3. Ignition switch OFF to ON.
  4. Erase self-diagnostic results for “EPS/DAST 3”.
  5. Pull the parking brake switch.
    noteCheck the parking brake switch indicator is turn On.
  6. Ignition switch OFF.
  7. Get out of the vehicle and close all doors.
  8. Wait 65 seconds.
    note
    • Check the parking brake switch indicator turn OFF.
    • If the rear brake caliper is heated, wait an hour so that parking brake switch indicator does not turn OFF.
  9. Ignition switch ON.
  10. Perform self-diagnosis for “EPS/DAST 3”.
Is DTC “C1621–86” detected?
Replace the power steering control module (steering gear assembly). Refer to Removal and Installation.
INSPECTION END