Montero V6-3.8L SOHC (2005)
1. Disconnect front-ECU connector A-07X and measure the voltage available at the relay box side of the connector.
2. Measure the voltage between terminal 7 and ground.
-
The voltage should be approximately 12 volts (battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery positive voltage)?
YES: Go to Step 5.
NO: Go to Step 4.
STEP 4. Check the wiring harness between front-ECU connector A-07X (terminal 7) and the battery.
Q: Is the wiring harness between front-ECU connector A-07X (terminal 7) and the battery in good condition?
YES: No action is necessary and testing is complete.
NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the
connector. Repair the wiring harness as necessary. The system should communicate with the front-ECU normally.
