Montero V6-3.8L SOHC (2005)
YES: Go to Step 2.
NO: Refer to Inspection Procedure E-1 "Keyless entry system does not operate."
STEP 2. Verify the answerback adjustment function.
Check the answerback functions. (Refer to passenger's Keyless Entry System - On-vehicle Service - Enabling/disabling the Answerback Function.)
Q: Does the answerback function work normally?
YES: No action is necessary and testing is complete.
NO: Go to Step 3.
STEP 3. Verify the trouble symptom.
Q: Which answerback function is defective?
Only the dome light : Go to Step 4.
Only the hazard warning lights (turn-signal lights) : Go to Step 5.
All functions do not work [dome light, hazard warning lights (turn-signal lights) and horn] : Replace the ETACS-ECU. Verify that the
answerback functions work normally.
STEP 4. Verify the dome light.
Q: Does the dome light illuminate normally?
YES: Replace the ETACS-ECU. Verify that the answerback functions work normally.
NO: Refer to Inspection Procedure M-1 "The dome light do not illuminate or go out normally."
STEP 5. Verify the hazard warning light.
Q: Do the hazard warning lights work normally?
YES: Replace the ETACS-ECU. Verify that the answerback functions work normally.
NO: Refer to Inspection Procedure K-2 "Hazard warning lights do not illuminate."
Inspection Procedure E-3
Keyless Entry System: Encrypted code cannot be registered
Encrypted Transmitter Code Circuit
CIRCUIT OPERATION
The ETACS-ECU operates the encrypted code register mode according to the following signals:
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Key reminder switch
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Hazard warning light switch
