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: Install the horn correctly. All the vehicle horn (including the theft-alarm horn) should sound when the theft-alarm system is triggered.
Inspection Procedure N-3
Theft-alarm System: Headlights (high-beam) do not flash when the theft-alarm system is triggered.
TECHNICAL DESCRIPTION (COMMENT)
If the headlights (high-beam) illuminate normally, the front-ECU or the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
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The front-ECU may be defective
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The ETACS-ECU may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
STEP 1. Check the headlight (high-beam) operation.
Q: Do the headlights illuminate at high beam normally?
YES: Go to Step 2.
NO: Refer to Inspection Procedure J-3 "Headlights (high-beam) does not illuminate."
STEP 2. Replace the ECU.
1. Replace the ETACS-ECU.
2. The headlights should flash at high beam when the theft-alarm system is triggered.
Q: Do the headlights flash at high beam when the theft-alarm system is triggered?
YES: No action is necessary and testing is complete.
NO: Replace the front-ECU. The headlights should flash at high-beam when the theft-alarm system is triggered.
Inspection Procedure N-4
Theft-alarm System: Panic alarm function does not work.
Panic Alarm Function
TECHNICAL DESCRIPTION (COMMENT)
If the keyless entry system is normal, the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
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The ETACS-ECU may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
