Montero XLS 4WD V6-3.5L SOHC (2001)
TECHNICAL DESCRIPTION (COMMENT)
The fog lights will not work normally if the fog light switch input signal is an error.
TROUBLESHOOTING HINTS
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Malfunction of the fog light switch
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Malfunction of the ETACS-ECU
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Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
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MB991223: Test Harness Set
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MB991502: Scan Tool (MUT-II)
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MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Check the fog light switch.
Q: Is the hazard warning light switch in good condition?
YES: Go to Step 2.
NO: Repair it. The fog light switch input signal should be able to be checked and the fog lights should work normally.
STEP 2. Check the fog light switch ground circuit at the fog light switch connector D-127.
1. Disconnect the fog light switch connector D-127 and measure at the harness side.
2. Measure the resistance between terminal 2 and ground.
Q: Is the resistance less than 2 ohm?
YES: Go to Step 5.
NO: Go to Step 3.