2010 Cadillac Truck SRX FWD V6-3.0L Page 543

2010 Cadillac Truck SRX FWD V6-3.0L Page 543

* 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

B2425 0B, B2425 0D, or B2425 0E

1. Ignition OFF, disconnect the harness connector at the E14A seat back heating element.

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.

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

瀚慖f not within the specified range, replace the E14A seat back heating element.

3. Connect the harness connector at the E14A seat back heating element and disconnect the X2 harness connector at the K29 seat heating

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.

4. Test for 1 - 7 Ohms between control circuit terminal 3 and control circuit terminal 1.

瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the E14B 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 E14B seat

cushion heating element.

5. If all circuits test normal, replace the K29 seat heating control module.

B2430 0B, B2430 0D, or B2430 0E

1. Ignition OFF, disconnect the harness connector at the E14C seat back heating element.

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.

2. 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.

3. Connect the harness connector at the E14C seat back heating element and disconnect the X2 harness connector at the K29 seat heating

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.

4. Test for 1 - 7 Ohms between control circuit terminal 5 and control circuit terminal 2.

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.

5. If all circuits test normal, replace the K29 seat heating 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 heating control module replacement, setup,