Measure the resistance between fan mode relay terminal and ECM connector.
Connector & terminal
2.0 L model
(B135) No. 27 — (F27) No. 7:
2.5 L model
(B136) No. 29 — (F27) No. 7:
Is the resistance less than 1 Ω?
Repair the open circuit of the harness between fan mode relay terminal and ECM.