Montero V6-3.8L SOHC (2005)
TECHNICAL DESCRIPTION (COMMENT)
If one of the headlights does not illuminate, a headlight bulb may be defective.
TROUBLESHOOTING HINTS
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The headlight bulb 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 Tool:
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MB991223: Test Harness Set
STEP 1. Check the headlight operation.
Q: Which of the headlights does not illuminate?
LH (low and high beam) : Go to Step 2.
RH (low and high beam) : Go to Step 5.
LH (only low beam) : Go to Step 8.
RH (only low beam) : Go to Step 11.
LH (only high beam) : Go to Step 14.
RH (only high beam) : Go to Step 17.
Low beam only (both RH and LH) : Refer to Inspection Procedure J-2 "Headlights (low-beam) do not illuminate."
High beam only (both RH and LH) : Refer to Inspection Procedure J-3 "Headlights (high-beam) do not illuminate."
STEP 2. Check headlight (LH) bulb.
1. Remove the headlight (LH) bulb.
2. Verify that the headlight (LH) bulb is not damaged or burned out.
Q: Is headlight (LH) bulb normal?
YES: Go to Step 3.
NO: Replace the headlight (LH) bulb. Verify that the headlights illuminate normally.
STEP 3. Check headlight (LH) connector A-20 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is headlight (LH) connector A-20 in good condition?
YES: Go to Step 4.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Verify that the headlights illuminate normally.
