2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 536
and programming
With KA6
DTC B2425 or B2430 (With KA6)
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
- Left Seat Cushion Heater Circuit High Current
DTC B2425 0D
- Left Seat Cushion Heater Circuit High Resistance
DTC B2425 0E
- Left Seat Cushion Heater Circuit Low Resistance
DTC B2430 0B
- Right Seat Cushion Heater Circuit High Current
DTC B2430 0D
- Right Seat Cushion Heater Circuit High Resistance
DTC B2430 0E
- Right Seat Cushion Heater Circuit Low Resistance
Diagnostic Fault Information
Circuit/System Description
The left and right rear heated seats are controlled by the rear seat heating control module that is located behind the rear seat back cushion. When a
rear heated seat is active, the module applies power through a common voltage supply circuit to the seat heater elements. The module controls the
seat temperature by providing a pulse width modulation (PWM) ground through the seat heater element control circuit to the heater elements. The
module then monitors the current flow through the heating elements and the rate of change of the temperature sensor to verify correct heated seat
operation.
Conditions for Running the DTC
* DTC B1325 must not be present.
* The engine must be running.
* The rear seat heating control module must be powered and the heated seat must be enabled.
