2010 Cadillac CTS Sedan AWD V6-3.6L Page 421

2010 Cadillac CTS Sedan AWD V6-3.6L Page 421

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.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

An improper voltage level is seen on either the folding mirror motor retract control circuit or the folding mirror motor extend control circuit.

Action Taken When the DTC Sets

Power folding mirror operations are suspended as long as the fault is present.

Conditions for Clearing the DTC

* A current DTC will clear when the fault is no longer present.

* A history DTC will clear after 40 malfunction-free ignition cycles.

Reference Information

Schematic Reference

Outside Rearview Mirror Schematics (See: Body and Frame/Mirrors/Diagrams/Electrical Diagrams/Outside Rearview Mirror Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

Outside Mirror Description and Operation (See: Body and Frame/Mirrors/Description and Operation/Outside Mirror Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit

Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)

Scan Tool References

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, using the folding mirror switch, the left and right rearview mirrors should extend and retract as commanded.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate outside rearview mirror.

2. Connect a test lamp between control circuit terminal 4 and control circuit terminal 5.

3. Command the mirror fold to Retract and Extend with a scan tool. The test lamp should turn ON when commanding the retract and extend

states.

瀚慖f 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 door module.

4. If all circuits test normal, test or replace the outside rearview mirror.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Power Mirror Replacement (Sedan/Wagon) (See: Body and Frame/Mirrors/Service and Repair/Power Mirror Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for DDM and PDM replacement, setup, and

programming

B1735

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820