STEP 1. Check the EV-CAN. Voltage measurement at C-146 intermediate connector.
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect the intermediate connector, and measure at its female-side intermediate connector (at the front wiring harness side).
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between C-146 intermediate connector terminal No.17 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between C-146 intermediate connector terminal No.18 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 14. <More than 4.0 V> Go to Step 2.
STEP 2. Check the EV-CAN between joint connector (CAN6) and the BMU. Voltage measurement at joint connector (CAN6).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN6), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN6) terminal No.8 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN6) terminal No.6 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.caution | Strictly observe the specified wiring harness repair procedure. For details refer to . |
Is the check result normal?
<4.0 V or less> Go to Step 3. <More than 4.0 V> Go to Step 12.
STEP 3. Check the EV-CAN between joint connector (CAN9) and the electric heater. Voltage measurement at joint connector (CAN9).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN9), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN9) terminal No.8 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN9) terminal No.6 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 6. <More than 4.0 V> Go to Step 4.
STEP 4. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [electric heater connector disconnected].
STEP 5. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 6. Check the EV-CAN between joint connector (CAN6) and the REMCU. Voltage measurement at joint connector (CAN6).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN6), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN6) terminal No.7 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN6) terminal No.5 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 9. <More than 4.0 V> Go to Step 7.
STEP 7. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [REMCU connector disconnected].
STEP 8. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 9. Check the EV-CAN between joint connector (CAN6) and the on board charger/DC-DC converter. Voltage measurement at joint connector (CAN6).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN6), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN6) terminal No.3 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN6) terminal No.1 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Repair the wiring harness between joint connector (CAN6) and joint connector (CAN9) or joint connector (CAN9) and C-146 intermediate connector. <More than 4.0 V> Go to Step 10.
STEP 10. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [on board charger/DC-DC converter connector disconnected].
STEP 11. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 12. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [BMU connector disconnected].
(1) Disconnect BMU connector, and diagnose by using the scan tool (M.U.T.-IIISE).
(2) Diagnose EV-CAN, and check if scan tool (M.U.T.-IIISE) screen is as shown in the illustration.
Does scan tool (M.U.T.-IIISE) screen correspond to the illustration?
Repair the wiring harness between joint connector (CAN6) and the BMU connector. Check the BMU connector, and repair if necessary. If the BMU connector is in good condition, go to Step 13.
STEP 13. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 14. Check the EV-CAN between joint connector (CAN1) and the electrical parking driver unit. Voltage measurement at joint connector (CAN1).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN1), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN1) terminal No.7 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN1) terminal No.16 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 17. <More than 4.0 V> Go to Step 15.
STEP 15. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [electrical parking driver unit connector disconnected].
STEP 16. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 17. Check the EV-CAN between joint connector (CAN2) and the PHEV-ECU. Voltage measurement at joint connector (CAN2).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN2), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN2) terminal No.11 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN2) terminal No.22 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 18. : <More than 4.0 V> Go to Step 24.
STEP 18. Check the EV-CAN between joint connector (CAN2) and the power drive unit. Voltage measurement at joint connector (CAN2).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN2), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN2) terminal No.9 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN2) terminal No.20 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Go to Step 21. : <More than 4.0 V> Go to Step 19.
STEP 19. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [power drive unit connector disconnected].
STEP 20. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 21. Check the EV-CAN between joint connector (CAN2) and the A/C compressor. Voltage measurement at joint connector (CAN2).
caution | A digital multimeter should be used. For details refer to . |
caution | The test wiring harness should be used. For details refer to . |
(1) Disconnect joint connector (CAN2), and measure at the wiring harness side.
(2) Connect the negative 12V starter battery terminal, and turn on the power supply mode of the electric motor switch.
(3) Voltage between joint connector (CAN2) terminal No.8 (CAN_H) and body groundOK: 4.0 V or less
(4) Voltage between joint connector (CAN2) terminal No.19 (CAN_L) and body groundOK: 4.0 V or less
(5) Disconnect the negative 12V starter battery terminal.
Is the check result normal?
<4.0 V or less> Repair the wiring harness between joint connector (CAN2) and joint connector (CAN1) or joint connector (CAN1) and C-146 intermediate connector. <More than 4.0 V> Go to Step 22.
STEP 22. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [A/C compressor connector disconnected].
STEP 23. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).
STEP 24. Scan tool (M.U.T.-IIISE) CAN bus diagnostics [PHEV-ECU connector disconnected].
(1) Disconnect PHEV-ECU connector, and diagnose by using the scan tool (M.U.T.-IIISE).
(2) Diagnose EV-CAN, and check if scan tool (M.U.T.-IIISE) screen is as shown in the illustration.
Does scan tool (M.U.T.-IIISE) screen correspond to the illustration?
Repair the wiring harness between joint connector (CAN2) and the PHEV-ECU connector. Check the PHEV-ECU connector, and repair if necessary. If the PHEV-ECU connector is in good condition, go to Step 25.
STEP 25. Scan tool (M.U.T.-IIISE) CAN bus diagnostics (retest the system).