Montero V6-3.8L SOHC (2005)
Door Lock Switch Input Circuit Part 2
CIRCUIT OPERATION
The ETACS-ECU operates the central door locking system according to signal from the door lock switch.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the doors is not locked or unlocked. If the signal is not normal, the power window main switch, power window sub switch or
the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
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The power window main switch or power window sub switch (door lock switch) 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
STEP 1. Verify which door switch is defective.
Q: Which door switch signal is not entered?
Power window main switch (Driver's door) : Go to Step 2.
Power window sub switch (Front passenger's door) : Go to Step 8.
Power window main switch (driver's door) and power window sub switch (front passenger's door) : Go to Step 14.
Power window main switch (driver's door) and power window sub switch (front passenger's door) (Lock signal only) : Go to Step 16.
Power window main switch (driver's door) and power window sub switch (front passenger's door) (Unlock signal only) : Go to Step 18.
