Friday, July 12, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 564


circuit.



Action Taken When the DTC Sets



The heated seat function for both seats will be disabled.



Conditions for Clearing the DTC



* The current DTC clears when the malfunction is no longer present and the power mode changes to OFF then back to ACC or RUN.



* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.



Reference Information



Schematic Reference



Heated/Cooled Seat Schematics ()



Connector End View Reference



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



Description and Operation



Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()



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



Verify the type of vehicle and the heated seat system for which the DTC set.



If the DTC set in the rear heated seat module, refer to Circuit/System Testing below.



If the DTC set in a vehicle equipped with memory, refer to DTC B2508 or B2509 (w/o HP2 with memory).



If the DTC set in a hybrid vehicle without memory, refer to DTC B2508 or B2509 (HP2 w/o memory).



If the DTC set in a non-hybrid vehicle without memory, refer to DTC B2508 or B2509 (Dealer installed).



Circuit/System Testing



1. Ignition OFF, disconnect the X1 harness connector at the RHSM.



2. Test for infinite resistance between the control circuit terminal 3 and ground.



锟斤拷 If not the specified value, test the control circuits listed below for a short to ground:



* Left rear seat cushion terminal 3



* Left rear seat cushion terminal 5



3. Test for infinite resistance between the control circuit terminal 6 and ground.



锟斤拷 If not the specified value, test the control circuits listed below for a short to ground:



* Right rear seat cushion terminal 6



* Right rear seat cushion terminal 2



4. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 3 and ground.



锟斤拷 If the test lamp illuminates, test the control circuits listed below for a short to voltage:



* Left rear seat cushion terminal 3



* Left rear seat cushion terminal 5



5. Verify that a test lamp does not illuminate between the control circuit terminal 6 and ground.

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