2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 530
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate driver seat motor listed below for which the DTC set:
* M50 seat front vertical motor
* M55 seat rear vertical motor
* M51 seat horizontal motor
* M56 seat back recline motor
2. Ignition ON, test for B+ between the 12 V reference circuit terminal 4 and ground.
瀚慖f less than the specified value, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the K40 seat memory control module.
3. Test for 0.3 - 2 V between the signal circuit terminal 2 and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the K40 seat memory control module.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K40 seat memory
control module.
4. If all circuits test normal, replace the seat motor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Cushion Frame Replacement (See: Body and Frame/Seats/Service and Repair/Removal and Replacement/Driver or
Passenger Seat Cushion Frame Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for seat memory control module replacement, setup,
and programming
With Memory A45
DTC B2425 or B2430 (With 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
