Montero XLS 4WD V6-3.5L SOHC (2001)
Inspection.
Q: Are the harness wires between RV meter connector D-08 and ETACS-ECU connector D-224 in good condition?
YES: Go to Step 4.
NO: Repair them. The input signal from the RV meter switch should be able to be checked and the RV meter should work normally.
STEP 4. Replacement of ECU
1. Replace the RV meter.
2. The input signal from the RV meter switch should be able to be checked and the RV meter should work normally.
Q: Is the input signal from the RV meter switch input normally?
YES: There is no action to be taken.
NO: Replace the ETACS-ECU. The input signal from the RV meter switch should be able to be checked and the RV meter should work normally.
R - Charts
Check the circuit (power supply line) from the battery to the ETACS-ECU
ETACS-ECU Power Supply Circuit
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Refer to Inspection Procedure A-1.
CIRCUIT OPERATION
The ETACS-ECU is always energized by the fusible link (2).
TECHNICAL DESCRIPTION (COMMENT)
If that power supply circuit is defective, the circuit flowing through the ignition switch (IG1) will function as a backup circuit. In this case, the following
functions will not work when the ignition switch is at "LOCK" (OFF) position:
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Ignition key reminder tone alarm function
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Light reminder tone alarm function
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Central door locking system
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Ignition key hole illumination light
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Hazard warning light
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Dome light dimming function
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Theft-alarm system
TROUBLESHOOTING HINTS
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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 battery circuit at the ETACS-ECU connector D-222.
1. Disconnect the ETACS-ECU connector D-222 and measure at the junction block side.
2. Measure the Voltage between terminal 6 and ground.
