2010 Cadillac Truck SRX FWD V6-3.0L Page 546

2010 Cadillac Truck SRX FWD V6-3.0L Page 546

瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the E14F seat

cushion heating element.

5. If all circuits test normal, replace the K29R rear seat heating control module.

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

1. Ignition OFF, disconnect the harness connector at the E14G 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 E14G seat back heating element.

3. Connect the harness connector at the E14G seat back heating element and disconnect the X2 harness connector at the K29R rear 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 E14H 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 E14H seat

cushion heating element.

5. If all circuits test normal, replace the K29R rear seat heating control module.

Repair Instructions

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

* Rear Seat Back Cushion Heater Replacement (See: Body and Frame/Seats/Seat Temperature Element/Service and Repair/Rear Seat Back

Cushion Heater Replacement)

* Rear Seat Cushion Heater Replacement (40 Percent Seat) (See: Body and Frame/Seats/Seat Temperature Element/Service and Repair/Rear

Seat Cushion Heater Replacement (40 Percent Seat))Rear Seat Cushion Heater Replacement (60 Percent Seat) (See: Body and

Frame/Seats/Seat Temperature Element/Service and Repair/Rear Seat Cushion Heater Replacement (60 Percent Seat))

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

setup, and programming

B2455

DTC B2455

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) provide an overview of each diagnostic category.

DTC Descriptors

DTC B2455 00

- Cellular Phone Microphone Circuit

DTC B2455 04

- Cellular Phone Microphone Circuit Open

Diagnostic Fault Information