Sunday, June 2, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 682


Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views)



Description and Operation



Cruise Control Description and Operation (See: Cruise Control/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



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 steering wheel controls switch - left.



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



锟斤拷 If 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 BCM.



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



锟斤拷 If 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



BCM.



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



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



锟斤拷 If less than the specified value, test the signal circuit for a short to ground.



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



Component Testing



1. Disconnect the harness connector at the steering wheel controls switch - left.



2. Cruise control switch ON, measure the resistance between terminal 1 and terminal 3 while individually activation and holding each cruise



control function switch and compare the resistance reading to the values in the table below.



锟斤拷 If not within the specified resistance range, replace the steering wheel controls switch - left.



Repair Instructions



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



* Steering Wheel Control Switch Assembly Replacement (See: Accessories and Optional Equipment/Sensors and Switches - Accessories and



Optional Equipment/Steering Mounted Controls Assembly/Service and Repair)



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

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