STEP 1. Check the signal line for short to ground circuit (PHEV-ECU connector and main drive lithium-ion battery connector).
STEP 2. Check the main drive lithium-ion battery main contactor (P) and (N) <On-vehicle check>.
STEP 3. Check the main drive lithium-ion battery main contactor (P) and (N).
(1) Remove the main contactor (Refer to GROUP 54Dc - Main Drive Lithium-ion Battery Disassembly and Assembly, Rear JB Assembly, Rear JB Bus Bars (A, B, C, D, M, N, P and T), Contactor and Fuse Removal and Installation ). (2) Check the internal resistance in the coil in the main contactors (P) and (N) (Refer to GROUP 54Dc - Main Drive Lithium-ion Battery Disassembly and Assembly, Contactor Check ). Is the check result normal?
Repair the connector or wiring harness. Then go to Step 6. Replace the main drive lithium-ion battery main contactor (P) or (N) (Refer to GROUP 54Dc - Main Drive Lithium-ion Battery Disassembly and Assembly, Rear JB Assembly, Rear JB Bus Bars (A, B, C, D, M, N, P and T), Contactor and Fuse Removal and Installation ). Then go to Step 6.
STEP 4. Check the signal line for short to ground circuit (main drive lithium-ion battery connector and main contactor).
STEP 5. Test the OBD-II drive cycle.
STEP 6. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 3 . (2) Check the DTC.
Is the DTC set?
Retry the troubleshooting. The procedure is complete.