Sunday, June 16, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 567


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 Testing



B2508 02



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



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:



* Driver seat cushion and back element terminal 3



* Driver seat cushion element terminal 5



* Driver seat back element terminal 1



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:



* Passenger seat cushion and back element terminal 6



* Passenger seat cushion element terminal 2



* Passenger seat back element terminal 4



4. If all circuits test normal, replace the HSM.



B2508 01



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



2. 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:



* Driver seat cushion and back element terminal 3



* Driver seat cushion element terminal 5



* Driver seat back element terminal 1



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



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



* Passenger seat cushion and back element terminal 6



* Passenger seat cushion element terminal 2



* Passenger seat back element terminal 4



4. If all circuits test normal, replace the HSM.



Repair Instructions



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



* Driver or Passenger Seat Back Cushion Heater Replacement (Escalade with HP2) ()Driver or Passenger Seat Back Cushion Heater

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