Montero V6-3.8L SOHC (2005)
RV Meter Any Control Switch Circuit
CIRCUIT OPERATION
The RV meter sends a tone alarm request signal to the SWS communication line. If the ETACS-ECU receives the request signal, it sound its tone alarm.
TECHNICAL DESCRIPTION (COMMENT)
If the SWS communication line between the RV meter and the ETACS-ECU is defective, the ETACS-ECU can not identify any input signals from the
RV meter even if the RV meter is normal.
TROUBLESHOOTING HINTS
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The RV meter 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. Check the RV meter.
Q: Does the RV meter work normally?
YES: Go to Step 2.
NO: First, repair the RV meter. Refer to , RV meter P.54A-284.
