Power Mirror Folding Malfunction (with A45)
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Power Mirror Folding Malfunction (with A45)
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Diagnostic Fault Information
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Circuit
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Short to Ground
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Open/High Resistance
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Short to Voltage
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Signal Performance
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Folding Mirror Motor Fold Control
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1
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1
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-
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-
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Folding Mirror Motor Unfold Control
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1
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1
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-
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-
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1. Power Folding Mirror Inoperative
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Circuit/System Description
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The mirror select and fold/unfold switches are inputs to the memory seat module through a serial data circuit. When the memory seat module receives a fold/unfold signal from the outside mirror switch the memory seat module will send a fold or unfold command to the outside mirror switch and passenger window switch. The outside mirror switch and passenger window switch control the fold/unfold motors through bi-directional control circuits.
Schematic Reference
Outside Rearview Mirror Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Outside Mirror Description and Operation (with A45)
Outside Mirror Description and Operation (w/o A45)
Electrical Information Reference
Scan Tool Reference
Control Module References
for information on diagnostic tools
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Circuit/System Verification
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1.
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Observe the scan tool Mirror Select Switch parameter while you move the switch between left, right and neutral/fold. The reading should change between Left, Right, and Neutral/Fold.
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2.
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If the reading does not change between the specified values replace the S52 outside mirror switch.
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3.
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Command the driver and passenger mirrors to Fold and Unfold with a scan tool. Both mirrors should move in the commanded direction.
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1.
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Ignition OFF, disconnect the harness connector at the appropriate A9 outside rearview mirror.
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2.
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Connect a test lamp between the control circuit terminal 9 and the control circuit terminal 10.
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3.
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Command the driver and passenger mirrors to Fold and Unfold with a scan tool. The test lamp should turn ON when commanding the fold and unfold states.
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4.
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If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground, or an open/high resistance on either control circuit. If the circuits test normal, replace the appropriate switch.
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•
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S52 outside mirror switch
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•
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S79P passenger window switch
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5.
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If all circuits test normal, test or replace the A9 outside rearview mirror.
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Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
