Thursday, April 25, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 532


6. 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



Replacement (Tahoe with HP2) ()Driver or Passenger Seat Back Cushion Heater Replacement (without HP2) ()



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



W/O HP2 With Memory



DTC B2435 or B2440 (w/o HP2 with Memory)



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 B2435 02



- Left Seat Back Heater Sensor Circuit Short to Ground



DTC B2435 05



- Left Seat Back Heater Sensor Circuit Short to Battery or Open



DTC B2440 02



- Right Seat Back Heater Sensor Circuit Short to Ground



DTC B2440 05



- Right Seat Back Heater Sensor Circuit Short to Battery or Open



Diagnostic Fault Information

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