STEP 1. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.
STEP 2. Measure the resistance at main drive lithium-ion battery connector.
(1) Disconnect the D-33 main drive lithium-ion battery connector, and measure at the wiring harness side.
(2) Check the resistance between the D-33 main drive lithium-ion battery connector (terminal No.3) and body ground.OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 3. Repair the connector(s) or wiring harness. Then go to Step 8.
STEP 3. Measure the voltage measurement at main drive lithium-ion battery connector
(1) Disconnect the D-32 main drive lithium-ion battery connector, and measure at the wiring harness side.
(2) Turn on the power supply mode of the electric motor switch.
(3) Check the voltage between the D-32 main drive lithium-ion battery connector (terminal No.5) and body ground.OK: Battery voltage
Is the check result normal?
Go to Step 4. Repair the connector(s) or wiring harness. Then go to Step 8.
STEP 4. Check of open circuit, short to ground or short to power supply in CNBL, CNBH line between main drive lithium-ion battery connector and BMU connector.
STEP 5. Resistance measurement at BMU connector.
STEP 6. Test the OBD-II drive cycle.
STEP 7. Check of open circuit and damage circuit in line between SUB-BMU connector and joint connector.
STEP 8. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle - Pattern 1 . (2) Check if the DTC is set.
Is the DTC set?
Retry the troubleshooting. The inspection is complete.