Secondary and Configurable Customer Control System: Other GMC Cutaway G3500

Reference Information

Schematic Reference

Steering Wheel Secondary/Configurable Control Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Steering Wheel Controls Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-478470-S19131911002012061100000)
2. «Connector Repairs»(ref-478470-S01172177192012061100000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-478470-S26306246352012061100000)
4. «Wiring Repairs»(ref-478470-S01823217952012061100000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool BCM SWC Bank 1 Status parameter. The reading should be idle and change between SW1-SW7 when pushing the appropriate switch.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Steering Wheel Control Switch Assembly Replacement»(ref-478484-S07735789082012061100000)
2. «Control Module References»(ref-478463-S11680464072012061100000) for BCM replacement, setup, and programming

Schematic Reference

Steering Wheel Secondary/Configurable Control Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Steering Wheel Controls Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-478470-S19131911002012061100000)
2. «Connector Repairs»(ref-478470-S01172177192012061100000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-478470-S26306246352012061100000)
4. «Wiring Repairs»(ref-478470-S01823217952012061100000)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, observe the scan tool BCM SWC Bank 1 Status parameter. The reading should be idle and change between SW1-SW7 when pushing the appropriate switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Steering Wheel Control Switch Assembly Replacement»(ref-478484-S07735789082012061100000)
2. «Control Module References»(ref-478463-S11680464072012061100000) for BCM replacement, setup, and programming

Symptoms - Secondary and Configurable Customer Controls

Note. The following steps must be completed before using the symptom tables.

1. Perform the «Diagnostic System Check - Vehicle»(ref-478441-S40412187692012061100000) before using the symptom tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to «Steering Wheel Controls Description and Operation»(ref-478484-S27043633312012061100000) .

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Schematic Reference

Steering Wheel Secondary/Configurable Control Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Steering Wheel Controls Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-478470-S19131911002012061100000)
2. «Connector Repairs»(ref-478470-S01172177192012061100000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-478470-S26306246352012061100000)
4. «Wiring Repairs»(ref-478470-S01823217952012061100000)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, observe the scan tool BCM SWC Bank 1 Status parameter. The reading should be idle and change between SW1-SW7 when pushing the appropriate switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Steering Wheel Control Switch Assembly Replacement»(ref-478484-S07735789082012061100000)
2. «Control Module References»(ref-478463-S11680464072012061100000) for BCM replacement, setup, and programming

Scheme 3

Steering Wheel Control Switch Assembly Replacement