Measure the resistance between IMM ECM harness connector terminal and ECM harness connector terminal.
Connector & terminal
2.0 L model
(B141) No. 23 — (B135) No. 31
2.5 L model
(B141) No. 23 — (B136) No. 34
Is the resistance less than 10 Ω?
Repair the open circuit of harness between IMM ECM and ECM.