Montero V6-3.8L SOHC (2005)
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The ignition key hole illumination light goes out in 30 seconds after the driver's door is closed. The ignition key hole illumination light remains
illuminated for 30 seconds after the ignition key is pulled out.
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The ETACS-ECU operates the ignition key hole illumination light according to the input signals from the following switches:
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Ignition switch (IG1): OFF
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Key reminder switch: OFF
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Vehicle condition
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Ignition switch: ACC position
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Ignition key is inserted in the ignition key cylinder
TECHNICAL DESCRIPTION (COMMENT)
Is the ignition key hole illumination light does not illuminate, the input circuits from the switches described in "CIRCUIT OPERATION", the key
reminder switch (ignition key hole illumination light bulb) or the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
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The driver's door switch may be defective
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The key reminder switch (key reminder switch or ignition key hole illumination light bulb) 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
Required Special Tools:
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MB991223: Harness Set
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MB991958: Scan Tool (MUT-III Sub Assembly)
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MB991824: Vehicle Communication Interface (V.C.I.)
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MB991827: MUT-III USB Cable
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MB991911: MUT-III Main Harness B
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MB991813: SWS Monitor Kit
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MB991806: SWS Monitor Cartridge
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MB991812: SWS Monitor Harness (For Column-ECU)
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MB991822: Probe Harness
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MB991854: SWS Monitor Harness (For 13-pin)
STEP 1. Use scan tool MB991958 to select "ECU COMM CHK" on the SWS monitor display.
Check the ETACS-ECU.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
