Montero V6-3.8L SOHC (2005)
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The SWS monitor body (I/F cartridge) may be defective
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The SWS monitor harness 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 SWS monitor kit MB991862 for proper connection.
Q: Is SWS monitor kit MB991862 connected with the column switch properly?
YES: Go to Step 2.
NO: Connect SWS monitor kit MB991862 to the column switch securely.
STEP 2. Verify the power supply circuit to the ETACS-ECU.
Q: Does the system communicate with scan tool MB991502 when the ignition switch is turned to the "ON" position?
YES: Go to Step 3.
NO: Refer to Inspection Procedure A-3 "Communication with the ETACS-ECU is not possible".
STEP 3. Check ETACS-ECU connector D-222 and D-224 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are ETACS-ECU connector D-222 and D-224 in good condition?
YES: Go to Step 4.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. The system should communicate with the SWS monitor
normally.
STEP 4. Check the ground circuit to the ETACS-ECU. Test at ETACS-ECU connector D-222 and D-224.
