Montero V6-3.8L SOHC (2005)
CIRCUIT OPERATION
The ETACS-ECU operates the following functions or systems according to signal from the driver's or front passenger's or back door lock actuator
switch:
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Central door locking system
-
Keyless entry system
-
Dome light dimming function
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the functions or systems, which are described in "CIRCUIT OPERATION", do not work normally.
TROUBLESHOOTING HINTS
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The door lock actuator 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 lock actuator switch is defective.
Q: Which door lock actuator switch signal is not entered?
Driver's door : Go to Step 2.
Front passenger's door : Go to Step 8.
Back door : Go to Step 14.
Front doors : Go to Step 20.
STEP 2. Check driver's door lock actuator switch connector H-10 for loose, corroded or damaged terminals, or terminals pushed back in the
connector.
Q: Is driver's door lock actuator switch connector H-10 in good condition?
YES: Go to Step 3.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. If the functions, which are described in "CIRCUIT
OPERATION", work normally, the input signal from the driver's door lock actuator switch should be normal.
