Refer to GROUP 54De - On-Vehicle Service, Quick Charging Contactor (P), (N) Drive Relay Check .
Is the check result normal?
Go to Step 4.
Replace the quick charging contactor (P), (N) drive relay.
STEP 4. Check the wiring harness for open circuit [main drive lithium-ion battery and quick charging contactor (P), (N) drive relay].
Between main drive lithium-ion battery and quick charging contactor (P) drive relay
Disconnect the D-33 main drive lithium-ion battery connector, the quick charging contactor (P) drive relay, and measure at the harness side.
Measure the resistance between the D-33 main drive lithium-ion battery connector (terminal No.12) and quick charging contactor (P) drive relay (terminal No.4).
OK: Continuity exists (2 Ω or less)
Between main drive lithium-ion battery and quick charging contactor (N) drive relay
Disconnect the D-33 main drive lithium-ion battery connector, the quick charging contactor (N) drive relay, and measure at the harness side.
Measure the resistance between the D-33 main drive lithium-ion battery connector (terminal No.13) and quick charging contactor (N) drive relay (terminal No.4).
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 5.
Repair the wiring harness or connector.
STEP 5. Check the wiring harness for open circuit [main drive lithium-ion battery and body ground].
(1) Disconnect the D-33 main drive lithium-ion battery contactor, and measure at the harness side.
(2) Measure the resistance between the D-33 main drive lithium-ion battery contactor connector (terminal No.11, 4) and body ground.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 6.
Repair the wiring harness or connector.
STEP 6. Check the high voltage fuse No.2 (70A) inside the main drive lithium-ion battery.
Check continuity the high voltage fuse No.2 (70A) inside the main drive lithium-ion battery (Refer to GROUP 54Dc - On-vehicle Service, Check and Replacement of the High-voltage Fuse Inside the Main Drive Lithium-ion Battery ).
Is the check result normal?
Go to Step 8.
Go to Step 7.
STEP 7. Check the wiring harness for short to ground circuit [main drive lithium-ion battery and quick charging connector].
(1) Disconnect the H-07 main drive lithium-ion battery contactor, and measure at the harness side.
(2) Measure the resistance between the H-07 main drive lithium-ion battery contactor connector (terminal No.1) and body ground.
OK: No continuity
Is the check result normal?
Replace the high voltage fuse No.2 (70A) (Refer to GROUP 54Dc - On-vehicle Service, Check and Replacement of the High-voltage Fuse Inside the Main Drive Lithium-ion Battery ).
Repair the wiring harness or connector, and then replace the high voltage fuse No.2 (70A) (Refer to GROUP 54Dc - On-vehicle Service, Check and Replacement of the High-voltage Fuse Inside the Main Drive Lithium-ion Battery ).
STEP 8. Check the Check the main drive lithium-ion battery contactor [quick charging contactor (P) and (N)]. <On-vehicle check>
Check resistance of main contactor [quick charging contactor (P) and (N) coil with harness connector (Refer to GROUP 54Dc - On-vehicle Service, Check on Coil Resistance of Contactor ).
Is the check result normal?
Go to Step 9.
Go to Step 11.
STEP 9. Check the quick charge contactor (P) and (N).
danger
Carry out the check on the high-voltage circuit while reading carefully the precautions on handling a high-voltage vehicle.
Wear the specified protection equipment during the check.
Isolate bare wires of the disconnected high-voltage circuit with a plastic tape.
Check continuity the quick charging contactor (P) and (N) (Refer to GROUP 54Dc - Inspection, Contactor Check ).
Is the check result normal?
Go to Step 10.
Replace the quick charge contactor (Refer to GROUP 54Dc - Main Drive Lithium-ion Battery Disassembly and Assembly, 13. Rear JB Assembly, Rear JB Bus Bars (A, B, C, D, M, N, P and T), Contactor and Fuse Removal and Installation ).
STEP 10. Check the wiring harness for open circuit [main drive lithium-ion battery and quick charge contactor (P) and (N)].
Between main drive lithium-ion battery and quick charging contactor (P)
Disconnect the D-33 main drive lithium-ion battery contactor, the quick charging contactor (P), and measure at the harness side.
Measure the resistance between the below:
Between the D-33 main drive lithium-ion battery contactor connector (terminal No.12) and quick charging contactor (P) connector (terminal No.1).
Between the D-33 main drive lithium-ion battery contactor connector (terminal No.11) and quick charging contactor (P) connector (terminal No.3).
OK: Continuity exists (2 Ω or less)
Between main drive lithium-ion battery and quick charging contactor (N)
Disconnect the D-33 main drive lithium-ion battery contactor, the quick charging contactor (N), and measure at the harness side.
Measure the resistance between the below:
Between the D-33 main drive lithium-ion battery contactor connector (terminal No.13) and quick charging contactor (N) connector (terminal No.2).
Between the D-33 main drive lithium-ion battery contactor connector (terminal No.11) and quick charging contactor (N) connector (terminal No.4).
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 11.
Repair the wiring harness or connector.
STEP 11. Check the EV charger cable [quick charge (P) and (N) line] installation.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction )
Tighten the EV charger cable [quick charge (P) and (N) line] by the specified torque.