2010 Cadillac CTS Sedan AWD V6-3.6L Page 151

2010 Cadillac CTS Sedan AWD V6-3.6L Page 151

Reference Information

Schematic Reference

SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)

Connector End View Reference

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

Description and Operation

SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation/SIR System 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 Reference

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

Circuit/System Verification

Ignition ON, observe the SDM Driver Seat Position Sensor parameter while moving the driver seat fully forward and fully rearward. The parameter

should cycle between Forward to Rearward as the seat is moved in the respective direction and DTC B0079 should not set.

If the parameters are correct and DTC B0079 is set, replace the SDM.

Circuit/System Testing

Important: When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or

replacement of the affected component/connector:

* Seat position sensor

* SDM

* Seat position sensor wiring harness connector

* SDM wiring harness connector

1. Ignition OFF, disconnect the harness connector at the LF seat position sensor.

2. Test for less than 10 ohms between low reference circuit terminal 1 and ground.

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the SDM.

3. Ignition ON, test for 4.5-5.5 volts between the signal circuit terminal 2 and ground.

瀚慖f less that the specified range, test the signal circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace

the SDM.

瀚慖f greater that the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the SDM.

4. If the circuits test normal, test or replace the seat position sensor.

Repair Instructions

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

Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming

B0080

DTC B0080

Diagnostic Instructions