Endeavor V6-3.8L SOHC (2004)
STEP 4. Check the wiring harness between immobilizer-ECU connector C-39 (terminal 1) and MFI relay connector B-15X (terminal 4).
NOTE: Also check intermediate connector A-13 and C-31, check the wires. If intermediate connector A-13 or C-31 are damaged, repair or replace
them. Refer to Harness Connector Inspection.