Saturday, October 23, 2021

2010 Cadillac Truck SRX FWD V6-3.0L Page 1568

2010 Cadillac Truck SRX FWD V6-3.0L Page 1568



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)



DTC Type Reference



Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code



(DTC) Type Definitions)



Scan Tool Reference



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



Circuit/System Verification



Engine ON, while rotating the steering wheel to both steering stops, observe the scan tool Cruise Control Switch parameter while pressing each of



the cruise control switches. The parameter should toggle between On, Off, Resume, Set, and Cancel as the applicable switch is pressed.



Circuit/System Testing



1. Ignition OFF, disconnect the harness connector at the S70L steering wheel control switch-left.



2. Ignition ON, test for B+ between the B+ circuit terminal 1 and ground.



瀚慖f less than the specified value, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9



BCM.



3. Test for B+ between the B+ circuit terminal 1 and the signal circuit terminal 2.



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



the K9 BCM.



4. Ignition OFF, disconnect the X1 harness connector at the K9 BCM.



5. Test for infinite resistance between the signal circuit terminal 3 and ground.



瀚慖f less than the specified value, test the signal circuit for a short to ground.



6. If all circuits test normal, test or replace the S70L steering wheel control switch-left.



Repair Instructions



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



* Cruise Control Switch Replacement (See: Cruise Control/Cruise Control Switch/Service and Repair)



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



P0568



DTC P0564, P0567, or P0568



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 Descriptors



DTC P0564



- Cruise Control Multifunction Switch Circuit

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