Secondary and Configurable Customer Control System: Other Cadillac SRX II facelift

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-644726-S12298670162014072300000)
2. «Connector Repairs»(ref-644726-S09053351542014072300000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-644726-S21103124652014072300000)
4. «Wiring Repairs»(ref-644726-S20665353652014072300000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.
2. Verify all the associated primary controls on the radio (Volume, Mute, Seek, etc.) operate properly. If any of the primary controls do not function properly Refer to «Symptoms - Entertainment»(ref-644714-S30364454332014072300000) If all of the primary controls function properly
3. Refer to Circuit/System Testing (below).

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

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-644698-S03753758692014072300000) 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-644772-S42819358112014072300000) .

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-644726-S12298670162014072300000)
2. «Connector Repairs»(ref-644726-S09053351542014072300000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-644726-S21103124652014072300000)
4. «Wiring Repairs»(ref-644726-S20665353652014072300000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify all the associated primary controls on the radio (Volume, Mute, Seek, etc.) operate properly. If any of the primary controls do not function properly Refer to «Symptoms - Entertainment»(ref-644714-S30364454332014072300000) If all of the primary controls function properly
3. Verify all functions on the S70R Steering Wheel Controls Switch - Right operate properly. If some, but not all, functions on the S70R Steering Wheel Controls Switch - Right do not operate Test or replace the S70R Steering Wheel Controls Switch - Right If all functions on the S70R Steering Wheel Controls Switch - Right do not operate Refer to «All Controls Malfunction»(ref-644772-S35620457202014072300000) in Circuit/System Testing. If all functions on the S70R Steering Wheel Controls Switch - Right operate properly
4. Verify the voice and mute functions of the S70L Steering Wheel Controls Switch - Left operate properly. If either the voice or mute function does not operate from the S70L Steering Wheel Controls Switch - Left Refer to «Left Controls Malfunction»(ref-644772-S35620457202014072300000) in Circuit/System Testing. If both the voice and mute functions of the S70L Steering Wheel Controls Switch - Left operate properly
5. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for Instrument Cluster replacement, programming, and setup

Scheme 4

The steering wheel control switches duplicate the function of the primary controls of the associated component. The Steering Wheel Controls are divided into a right-hand set and left-hand set. The right -hand switch is connected to the IPC LIN serial data and provides hardwired serial data input from the left-hand switches. The IPC identifies the switch selected and sends a serial data message to the component controlled by the switch, activating the feature.

This section is intended to diagnose the circuits between the IPC and the steering wheel control switches. If the primary control for the device is inoperative, refer to the appropriate section for the component the steering wheel control switch is used for.