2010 Cadillac CTS Sedan AWD V6-3.6L Page 639

2010 Cadillac CTS Sedan AWD V6-3.6L Page 639

Conditions for Clearing the DTC

* The current DTC clears when the malfunction is no longer present and the power mode changes to OFF then back to ACC or RUN.

* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.

Reference Information

Schematic Reference

* Driver Seat Schematics (See: Body and Frame/Seats/Diagrams/Electrical Diagrams/Driver Seat Schematics)

* Passenger Seat Schematics (See: Body and Frame/Seats/Diagrams/Electrical Diagrams/Passenger Seat Schematics)

Connector End View Reference

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

Description and Operation

Memory Seats Description and Operation (See: Body and Frame/Seats/Description and Operation/Memory Seats)

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 Reference

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

Circuit/System Testing

B3920 01 or B3920 02

1. Ignition OFF, disconnect the X1 harness connector at the MSM.

2. Ignition ON, verify that a test lamp does not illuminate between the control circuits listed below and ground:

* Front vertical motor terminal 12

* Front vertical motor terminal 13

* Rear vertical motor terminal 15

* Rear vertical motor terminal 16

* Seat horizontal motor terminal 9

* Seat horizontal motor terminal 10

瀚慖f the test lamp illuminates, test the control circuit for a short to voltage.

3. Test for infinite resistance between the control circuits listed below and ground:

* Front vertical motor terminal 12

* Front vertical motor terminal 13

* Rear vertical motor terminal 15

* Rear vertical motor terminal 16

* Seat horizontal motor terminal 9

* Seat horizontal motor terminal 10

瀚慖f not the specified value, test the control circuit for a short to ground.

4. Ignition OFF, disconnect the X4 harness connector at the MSM.

5. Ignition ON, verify that a test lamp does not illuminate between the control circuits listed below and ground:

* Lumbar horizontal motor terminal 12

* Lumbar horizontal motor terminal 13

* Seat recline motor terminal 15

* Seat recline motor terminal 16

瀚慖f the test lamp illuminates, test the control circuit for a short to voltage.

6. Test for infinite resistance between the control circuits listed below and ground:

* Lumbar horizontal motor terminal 12

* Lumbar horizontal motor terminal 13