Power Mirror Folding Inoperative
Power Mirror Folding Inoperative
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
The driver door module (DDM) and passenger door module (PDM) control the power folding or power extending functions of the outside rearview mirrors. The folding mirror motors are controlled by using bi-directional motor controls through the folding mirror motor retract control circuit and the folding mirror motor extend control circuit.
Reference Information
Schematic Reference
Outside Rearview Mirror Schematics (Outside Rearview Mirror Schematics)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Outside Mirror Description and Operation (Heated Mirrors) (Outside Mirror Description and Operation (Heated Mirrors))Outside Mirror Description and Operation (Power Mirrors) (Outside Mirror Description and Operation (Power Mirrors))
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, command the power folding mirrors to extend and retract using the mirror fold switch. Both mirrors should extend and retract as commanded.
If both the driver and passenger mirrors do not extend and retract as commanded, refer to Power Mirror Switch Circuit Test.
If only the driver or passenger mirror does not extend and retract as commanded, refer to Power Folding Mirror Circuit Test.
Circuit/System Testing
Power Mirror Switch Circuit Test
1. Ignition OFF, disconnect the X5 harness connector at the DDM.
2. Ignition ON, verify the scan tool Mirror Select Switch parameter is Neutral.
• If not the specified value, replace the DDM.
3. Ignition OFF, connect the X5 harness connector at the DDM.
4. Ignition ON, observe the scan tool Mirror Select Switch parameter while cycling the mirror select switch between the left and right positions. The parameter should change between Neutral/Fold, Left, and Right.
• If the parameter does not cycle between the specified values, replace the outside rearview mirror switch.
Power Folding Mirror Circuit Test
1. Ignition OFF, disconnect the X3 harness connector at the appropriate door module.
2. Ignition ON, verify a test lamp does not illuminate between the following circuit terminals and ground:
* Control circuit terminal B1
* Control circuit terminal A1
• If the test lamp illuminates, test the appropriate control circuit for a short to voltage.
3. Ignition OFF, test for infinite resistance between the following circuits and ground:
* Control circuit terminal B1
* Control circuit terminal A1
• If less than the specified value, test the appropriate control circuit for a short to ground. If the circuits test normal, test or replace the rearview mirror.
4. Test for 5-15 ohms between the control circuit terminal B1 and the control circuit terminal A1.
• If not within the specified range, test both control circuits for an open/high resistance. If the circuits test normal, test or replace the rearview mirror.
5. If all circuits test normal, replace the door module.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Power Mirror Switch Replacement (Service and Repair)
* Outside Rearview Mirror Replacement (Door Mounted) (Outside Rearview Mirror Replacement (Door Mounted))Outside Rearview Mirror Replacement (Fender Mounted) (Outside Rearview Mirror Replacement (Fender Mounted))
* Control Module References (Programming and Relearning) for DDM or PDM replacement, setup, and programming