Montero V6-3.8L SOHC (2005)
YES: Replace the ETACS-ECU. All the vehicle horn (including the theft-alarm horn) should sound when the theft-alarm system is triggered.
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. All the vehicle horn (including the theft-alarm horn) should sound when the theft-alarm system is
triggered.
STEP 20. Check the horn.
1. When the theft-alarm system is triggered, remove the horn (high or low) which does not sound.
2. Connect the battery as shown, and Verify that the horn sounds.
Q: Is the horn normal?
YES: Go to Step 21.
NO: Replace the defective horn. All the vehicle horn (including the theft-alarm horn) should sound when the theft-alarm system is triggered.
STEP 21. Check which horn is defective.
Q: Which horn does not sound?
horn (high) : Go to Step 22.
horn (low) : Go to Step 24.
STEP 22. Check joint connector (3) A-17 and horn (high) connector A-27 for loose, corroded or damaged terminals, or terminals pushed back
