Montero Sport V6-3.5L SOHC (2004)
Ignition Key Hole Illumination Circuit Part 2
CIRCUIT OPERATION
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The ETACS-ECU monitors the ignition switch by detecting voltage from the ignition switch.
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The ETACS-ECU judges that the driver's side door is opened or closed by detecting voltage from the front door switch (LH).
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When the driver's door is opened (door switch on), the ignition key hole illumination light will illuminate. When the driver's door is closed (door
switch off), the ignition key hole illumination light will go out within 15 seconds.
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When the driver's door is opened without removing the ignition key, the tone alarm will sound intermittently to remind that the ignition key has not
been removed.
TECHNICAL DESCRIPTION (COMMENT)
The input signal from the ignition switch may be defective, or the ETACS-ECU may be defective. If the fuse No.1 in relay box is blown, the harness may
be short circuited.
TROUBLESHOOTING HINTS
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Damaged harness wire or connector
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Malfunction of the ETACS-ECU
