2010 Cadillac Truck SRX FWD V6-3.0L Page 813
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Brake Assist System Description and Operation (See: Brakes and Traction Control/Hydraulic System/Description and Operation/Brake Assist
System)
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)
Circuit/System Testing
1. Ignition ON, verify that DTC C1100 is not present.
瀚慖f DTC C1100 is present, refer to DTC C1100 (See: C Code Charts/C1100).
2. Inspect the brake booster vacuum system for damage, leakage and correct installation. Refer to Brake Assist System Diagnosis (See: Brakes
and Traction Control/Hydraulic System/Testing and Inspection/Component Tests and General Diagnostics/Brake Assist System Diagnosis).
3. If the brake booster vacuum systems diagnoses normal, replace the B19B Brake Booster Vacuum Sensor and verify the DTC does not reset.
If the DTC resets, replace the K17 Electronic Brake Control Module (EBCM).
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests)
* Power Brake Booster Vacuum Sensor Replacement (See: Brakes and Traction Control/Power Brake Assist/Brake Booster Vacuum
Sensor/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning)
C0393
DTC C0393
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC C0393 0B
- Rear Axle Coupling Solenoid Valve Control Circuit High Current
Diagnostic Fault Information
Circuit/System Description
The rear differential clutch solenoid valve is mounted on the rear of the differential housing. The rear differential clutch control module supplies
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