2010 Cadillac Truck SRX AWD V6-3.0L Page 541

2010 Cadillac Truck SRX AWD V6-3.0L Page 541

4. Test for 0.5 - 5 Ohms between terminal A and terminal B.

瀚慖f not within the specified range, replace the E14C seat back heating element.

5. Connect the harness connector at the E14C seat back heating element and disconnect the X3 harness connector at the K40 seat memory

control module.

Note: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat unoccupied, then with

the seat occupied.

6. Test for 1 - 7 Ohms between control circuit terminal 10 and control circuit terminal 4.

瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the E14D seat cushion

heating element.

瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the E14D seat

cushion heating element.

7. If all circuits test normal, replace the K40 seat memory control module.

Repair Instructions

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

* Driver or Passenger Seat Back Cushion Heater Replacement (See: Body and Frame/Seats/Seat Temperature Element/Service and

Repair/Driver or Passenger Seat Back Cushion Heater Replacement)

* Driver or Passenger Seat Cushion Heater Replacement (See: Body and Frame/Seats/Seat Temperature Element/Service and Repair/Driver or

Passenger Seat Cushion Heater Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for seat memory control module replacement, setup,

and programming

Without Memory A45

DTC B2425 or B2430 (Without Memory A45)

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 B2425 0B

- Driver Seat Cushion Heater Circuit High Current

DTC B2425 0D

- Driver Seat Cushion Heater Circuit High Resistance

DTC B2425 0E

- Driver Seat Cushion Heater Circuit Low Resistance

DTC B2430 0B

- Passenger Seat Cushion Heater Circuit High Current

DTC B2430 0D

- Passenger Seat Cushion Heater Circuit High Resistance

DTC B2430 0E

- Passenger Seat Cushion Heater Circuit Low Resistance

Diagnostic Fault Information