Montero XLS 4WD V6-3.5L SOHC (2001)
turn-signal lights flash.
TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU makes the turn-signal lights flash, based on the input signals from the following switches:
-
Ignition switch (IG1)
-
Turn-signal light switch
If the turn-signal lights do not flash normally, a defect on the relevant circuits or the ETACS-ECU may be suspected.
If the hazard warning lights also do not flash, a defect in the ETACS-ECU power supply line specific to the turn-signal lights is suspected.
NOTE: If only one of the turn-signal lights does not flash, the light bulb may be burned out or the harness wires between the ETACS-ECU and the light
may be defective. In this case, check the circuit by referring to Turn-signal Light and Hazard Warning Light.
TROUBLESHOOTING HINTS
-
Malfunction of the column switch (turn-signal light and lighting switch)
-
Malfunction of the ETACS-ECU
-
Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
-
MB991223: Test Harness Set
-
MB991502: Scan Tool (MUT-II)
-
MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Check the hazard warning light operation.
Q: Do the hazard warning lights work normally?
YES: Go to Step 8 <when using scan tool MB991502> or 9 <when using a voltmeter>.
NO: Go to Step 2.
STEP 2. Check turn-signal light state operation.
Q: Does any turn-signal lights flash?
YES (only one side illuminates): Go to Step 3.
NO (no lights flash at all): Go to Step 5.
STEP 3. Check ETACS-ECU connector D-222 and junction block connectors D-210, D-212 and D-217 for damage.
