Yukon Denali AWD V8-6.2L (2007)
Wiper Motor: Customer Interest
Electrical - Various Electrical Malfunction/Systems Inop
TECHNICAL
Bulletin No.: 09-08-43-001
Date: March 25, 2009
Subject:
Wipers Do Not Park in Correct Location, Various Electrical Concerns: Door Locks/Windows Inoperative, Radio Stays on After Driver's Door Opened,
Telltales Illuminated (Diagnose Wiper Wiring, Relocate Ground Wire)
Models:
2007-2009 Cadillac Escalade Models
2007-2009 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2007-2009 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL
Condition
Some customers may comment that the windshield wipers do not park in the correct location. In addition to this wiper concern, customers may also
comment on any of the following conditions:
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High/low headlamp beam selection switch, power door locks and/or power windows are inoperative.
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Radio stays on after the driver's door has been opened.
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Dome lamps remain on at all times.
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Door Ajar message displays in the Driver Information Center (DIC).
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Tow haul telltale lamp is either always illuminated or does not turn on.
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Headlamps do not turn on or off when requested by the manual headlamp switch.
Correction
Note
DO NOT replace the windshield wiper motor for this concern unless instructed to by the diagnostics.
Wipers Do Not Park Circuit/System Testing
1. Access the wiper motor located under the cowl cover. Refer to Air Inlet Grille Panel Replacement procedure in SI.
2. With the ignition OFF, disconnect the harness connector at the windshield wiper motor (1).
3. Turn the ignition ON. Verify that the scan tool BCM Wiper Park Switch parameter is Inactive.
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If not Inactive, test the signal circuit terminal 3 (1) for a short to ground. If the circuit tests normal, proceed to Wiring Repair below. If the circuit
does not test normal, fix the short to ground.
