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Diagnosis Procedure
1.CHECK 12V BATTERY
  1. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  2. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  3. Check the connection of the 12V battery terminal. Refer to PRECAUTIONS FOR REMOVING BATTERY TERMINAL.Refer to Removal and Installation.
  4. Check the 12V battery Refer to Work Flow.
Is the inspection result normal?
Repair / replace harness or connector, securely lock the connector.
 
2.PERFORM SELF-DIAGNOSIS (1)
M.U.T.-III SE
  1. Connect the 12V battery terminal.
  2. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  3. Repeat Step 2 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  4. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  5. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  6. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  7. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  8. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  9. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  10. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  11. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  12. Release the brake pedal.
  13. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
INSPECTION END
 
3.Checking connector terminal
  1. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  2. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  3. Disconnect the battery negative terminal. Refer to Refer to Precautions for Removing Battery Terminal.
  4. Disconnect the electric driven intelligent brake unit wiring harness connector, and check that the pin terminal and its connection is normal.
Is the inspection result normal?
Repair / replace harness or connector, securely lock the connector.
 
4.PERFORM SELF-DIAGNOSIS (2)
M.U.T.-III SE
  1. Connect the electric driven intelligent brake unit wiring harness connector.
  2. Connect the battery negative terminal.
  3. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  4. Repeat Step 3 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  5. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  6. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  7. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  8. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  9. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  10. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  11. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  12. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  13. Release the brake pedal.
  14. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
INSPECTION END
 
5.Check of electric motor switch ON power supply
  1. Connect the battery negative terminal.
  2. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  3. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  4. Disconnect the battery negative terminal. Refer to Precautions for Removing Battery Terminal.
  5. Disconnect the electric driven intelligent brake unit wiring harness connector.
  6. Connect the battery negative terminal.PRECAUTIONS FOR REMOVING BATTERY TERMINAL.
  7. Check the continuity between the electric driven intelligent brake unit wiring harness connector and body ground.
    Electric driven intelligent brake unit−Voltage
    ConnecterTerminal
    E41726Body groundApprox. 0 V
  8. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  9. Check the continuity between the electric driven intelligent brake unit wiring harness connector and body ground.
    Electric driven intelligent brake unit−Voltage
    ConnecterTerminal
    E41726Body ground10 - 16 V
Is the inspection result normal?
 
6.Check of electric motor switch ON power supply circuit
  1. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  2. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  3. Disconnect the battery negative terminal. Refer to Refer to Precautions for Removing Battery Terminal.
  4. Check the 15 A fuse (No. 62).
  5. Disconnect the IPDM E/R wiring harness connector.
  6. Check the continuity between the electric driven intelligent brake unit and IPDM E/R.
    Electric driven intelligent brake unitIPDM E/RContinuity
    ConnecterTerminalConnecterTerminal
    E41726E1182Continuity exists
  7. Check the continuity between the electric driven intelligent brake unit wiring harness connector and body ground.
    Electric driven intelligent brake unit−Voltage
    ConnecterTerminal
    E41726Body groundApprox. 0 V
Is the inspection result normal?
Troubleshoot the electric motor switch ON power supply system.Diagnosis Procedure.
Repair / replace harness or connector, securely lock the connector.
 
7.PERFORM SELF-DIAGNOSIS (3)
M.U.T.-III SE
  1. Connect the electric driven intelligent brake unit wiring harness connector.
  2. Connect the IPDM E/R wiring harness connector.
  3. Connect the battery negative terminal.
  4. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  5. Repeat Step 4 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  6. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  7. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  8. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  9. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  10. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  11. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  12. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  13. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  14. Release the brake pedal.
  15. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
INSPECTION END
 
8.Checking 12V battery power supply
  1. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  2. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  3. Disconnect the battery negative terminal. Refer to Refer to Precautions for Removing Battery Terminal.
  4. Disconnect the electric driven intelligent brake unit wiring harness connector.
  5. Connect the battery negative terminal.
  6. Check the voltage between the electric driven intelligent brake unit wiring harness connector terminals.
    Electric driven intelligent brake unitVoltage
    ConnecterTerminal
    E4177 − 1110 − 16 V
    26 − 11
  7. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  8. Check the voltage between the electric driven intelligent brake unit wiring harness connector terminals.
    Electric driven intelligent brake unitVoltage
    ConnecterTerminal
    E4177 − 1110 − 16 V
    26 − 11
Is the inspection result normal?
 
9.Checking 12V battery power supply
  1. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  2. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  3. Disconnect the battery negative terminal. Refer to Precautions for Removing Battery Terminal.
  4. Check the 50 A fusible link (No. 26).
  5. Check the continuity and short circuit between the electric driven intelligent brake unit wiring harness connector terminal No. 1 and the 50 A fusible link (No. 26).
  6. Check the 10 A fuse (No. 42).
  7. Check the continuity and short circuit between the electric driven intelligent brake unit wiring harness connector terminal No. 28 and the 10 A fuse (No. 42).
Is the inspection result normal?
Diagnose the 12V battery power supply. Refer to Work Flow.
Repair / replace harness or connector, securely lock the connector.
 
10.PERFORM SELF-DIAGNOSIS (4)
M.U.T.-III SE
  1. Connect the electric driven intelligent brake unit wiring harness connector.
  2. Connect the battery negative terminal.
  3. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  4. Repeat Step 3 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  5. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  6. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  7. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  8. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  9. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  10. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  11. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  12. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  13. Release the brake pedal.
  14. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
INSPECTION END
 
11.Checking ground
  1. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  2. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  3. Disconnect the battery negative terminal. Refer to Refer to Precautions for Removing Battery Terminal.
  4. Disconnect the electric driven intelligent brake unit wiring harness connector.
  5. Check the continuity between the electric driven intelligent brake unit and body ground.
    Electric driven intelligent brake unit–Continuity
    ConnecterTerminal
    E41711Body groundContinuity exists
Is the inspection result normal?
Repair / replace harness or connector, securely lock the connector.
 
12.PERFORM SELF-DIAGNOSIS (5)
M.U.T.-III SE
  1. Connect the electric driven intelligent brake unit wiring harness connector.
  2. Connect the battery negative terminal.
  3. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  4. Repeat Step 3 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  5. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  6. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  7. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  8. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  9. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  10. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  11. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  12. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  13. Release the brake pedal.
  14. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
INSPECTION END
 
13.CHECK DATA LIST (1)
M.U.T.-III SE
  1. Connect the electric driven intelligent brake unit wiring harness connector.
  2. Connect the battery negative terminal.
  3. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  4. Repeat Step 3 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  5. Start the M.U.T.-III SE, then select "EBA" and "Data List" in order.
  6. Check "iB Power Supply Battery" and "iB Power Supply ECU". (Refer to Reference Value).
Is the inspection result normal?
Replace the electric driven intelligent brake unit. Refer to Refer to Removal and installation.
 
14.PERFORM SELF-DIAGNOSIS (6)
M.U.T.-III SE
  1. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  2. Repeat Step 1 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  3. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  4. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  5. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  6. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  7. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  8. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  9. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  10. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  11. Release the brake pedal.
  12. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
INSPECTION END
 
15.CHECK DATA LIST (2)
M.U.T.-III SE
  1. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  2. Repeat Step 1 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  3. Select "EBA" and "Data List" in order.
  4. Check "iB Temperature Therm Ch2" .DTC Description.
Is the control module temperature –43°C (-45.4°F) or less, or 169°C (336.2°F) or more?
Replace the electric driven intelligent brake unit. Refer to Removal and installation.
 
16.CHECK ELECTRIC MOTOR UNIT COMPARTMENT
Check if there is a part heating abnormally around the electric driven intelligent brake unit.
Is there any part generating heat?
Diagnose the part generating heat, and wait until the temperature decreases then
Replace the electric driven intelligent brake unit. Refer to Removal and installation.
 
17.PERFORM SELF-DIAGNOSIS (7)
M.U.T.-III SE
  1. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  2. Repeat Step 1 twice or more.
    cautionWait for 5 seconds or more after the power supply mode of the electric motor switch is changed to OFF.
  3. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  4. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  5. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  6. Start the M.U.T.-III SE, then erase the DTC set in "EBA".
  7. Change the power supply mode of the electric motor switch to OFF, then disconnect the M.U.T.-III SE from the data link connector.
  8. Close all the doors including the back door, then confirm that the room light turns off and wait for 3 minutes or more outside the vehicle in that state.
    cautionWhile waiting, do not touch the vehicle.
  9. Change the power supply mode of the electric motor switch to ON from OFF without depressing the brake pedal.
    cautionDo not set the vehicle to the READY status.
  10. Depress the brake pedal 100 mm (3.9in) or more, the keep that state for 5 seconds or more.
  11. Release the brake pedal.
  12. Start the M.U.T.-III SE, then perform the self-diagnosis of "EBA".
Is DTC C18FD-19 detected?
Replace the electric driven intelligent brake unit. Refer to Removal and installation.
INSPECTION END