Montero V6-3.8L SOHC (2005)
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The sunroof motor assembly 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
Check the input signal (by using the pulse check mode of the monitor.)
Check the input signals from the sunroof switch.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
1. Connect scan tool MB991502 to the data link connector (16-pin).
2. Operate scan tool MB991958 according to the procedure below to display "PULSE CHECK."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."
3. When each function of the sunroof switch is operated (turned on), check that scan tool MB991958 sounds.
Q: Does scan tool MB991958 sound when the sunroof switch is operated?
YES: Replace the sunroof motor assembly. The sunroof function should now work normally.
NO: Refer to Inspection Procedure O-9 "ETACS-ECU does not receive any signal from the up, open or close/down switch."
Inspection Procedure F-3
Sunroof: Sunroof timer function does not work normally.
