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Diagnosis Procedure
1.CHECK CONNECTOR
  1. Disconnect 12V battery negative terminal.
  2. Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
Is the inspection result normal?
.
Repair / replace harness or connector, securely lock the connector. .
 
2.PERFORM DIAGNOSTIC TROUBLE CODE
With M.U.T.-III SE
  1. Connect 12V battery negative terminal, and wait 30 seconds.
  2. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.
    noteVehicle must be driven after repair or replacement to erase the previous DTCs.
  3. Stop the vehicle.
  4. Electric motor switch OFF (Auto ACC function OFF).
  5. Electric motor switch ON.
    noteWait at least 10 seconds after electric motor switch ON.
  6. Perform Diagnostic Trouble Code for “ABS".
Is DTC “C1051-04" detected?
.
INSPECTION END
 
3.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT
Check the ABS actuator and electric unit (control unit) power supply and ground circuit. Refer to Diagnosis Procedure.
Is the inspection result normal?
.
Repair / replace harness, connector, terminal, fuse, or fusible link. .
 
4.ERASE DIAGNOSTIC TROUBLE CODE RESULT (1)
With M.U.T.-III SE
  1. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.
    noteVehicle must be driven after repair or replacement to erase the previous DTCs.
  2. Stop the vehicle.
  3. Erase Diagnostic Trouble Code result for “ABS".
  4. Electric motor switch OFF (Auto ACC function OFF) → ON → OFF (Auto ACC function OFF).
: INSPECTION END
 
5.CHECK TERMINAL
  1. Disconnect 12V battery negative terminal.
  2. Check the ABS actuator and electric unit (control unit) terminals for damage or loose connection with harness connector.
Is the inspection result normal?
Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation.
Repair / replace harness or connector. .
 
6.ERASE DIAGNOSTIC TROUBLE CODE RESULT (2)
With M.U.T.-III SE
  1. Connect 12V battery negative terminal.
  2. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.
    noteVehicle must be driven after repair or replacement to erase the previous DTCs.
  3. Stop the vehicle.
  4. Erase Diagnostic Trouble Code result for “ABS".
  5. Electric motor switch OFF (Auto ACC function OFF) → ON → OFF (Auto ACC function OFF).
: INSPECTION END