2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 836
Conditions for Clearing the DTC
C0574 02 and C0574 04
* The condition for setting the DTC is no longer present.
* The circuit is not tested unless the ignition is cycled.
C0574 13 and C0574 14
* The temperature is within the limit for more than 30 s.
* The circuit is tested with a frequency of 50 Hz.
Diagnostic Aids
C0574 13 and C0574 14
The DTCs C0574 13 and C0574 14 indicate that the rear differential clutch control module temperature is out of range. This is a temporary fault.
The rear differential clutch control module is protected against running during critical temperatures. As soon as the temperature reaches normal
values the actual DTC is cleared.
Reference Information
Schematic Reference
Rear Axle Schematics (See: Transmission and Drivetrain/Differential Assembly/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Rear Drive Axle Description and Operation (See: Transmission and Drivetrain/Differential Assembly/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/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 scan tool Rear Differential Clutch Control Module Temperature parameter. The scan tool should display be between -40掳
C (-40掳F) and 115掳C (239掳F) when stationary.
Circuit/System Testing
Important: The rear drive clutch solenoid valve is calibrated with and is part of the rear differential clutch control module. Both
components must be replaced as a matched set.
C0574 02 and 0574 04
Ignition ON. Verify that DTC C0574 02 or 0574 04 is not set.
If a DTC is set, replace the K47 rear differential clutch control module.
C0574 13 and 0574 14
1. Ignition OFF, allow the housing and the K47 rear differential clutch control module temperature to adjust to within 0-40掳C (32-104掳F).
2. Ignition ON, verify that DTC C0574 13 or C0574 14 is not set.
If a DTC is set, replace the K47 rear differential clutch control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
