Measure the resistance between ECM and DCCM.
Connector & terminal
(B136) No. 35 — (B310) No. 81:
(B136) No. 27 — (B310) No. 83:
Is the resistance 1 Ω or less?
Repair the harness and connector.
NOTE:
In this case, repair the following item:
• Open circuit in harness between ECM and VDCCM connector
• Poor contact of joint connector