2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 261
The seat memory control module detects a short to voltage on the heater element control circuits.
B242A 02
The seat memory control module detects a short to ground on the heater element control circuits.
Action Taken When the DTC Sets
The heated seat function for both seats will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear and set a history code 3 seconds after the reference voltage returns to normal operating range and the ignition is
cycled OFF then back to ACC or RUN.
* The history DTC will clear after 40 consecutive fault-free ignition cycles have occurred.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics (See: Body and Frame/Seats/Seat Temperature Element/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Heated/Vented Seat Description and Operation (See: Body and Frame/Seats/Seat Temperature Element/Description and Operation/Heated/Vented
Seat)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* 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
1. Ignition OFF, disconnect the X4 harness connector at the K40 seat memory control module.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 5 and ground.
瀚慖f the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Ignition OFF, connect the X4 harness connector at the K40 seat memory control module and disconnect the X3 harness connector at the K40
seat memory control module.
4. Test for infinite resistance between the control circuit terminal 11 and ground.
瀚慖f not the specified value, test the control circuit for a short to ground.
5. Test for infinite resistance between the control circuit terminal 10 and ground.
瀚慖f not the specified value, test the control circuit for a short to ground.
6. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 11 and ground.
瀚慖f the test lamp illuminates, test the control circuit for a short to voltage.
7. Verify that a test lamp does not illuminate between the control circuit terminal 10 and ground.
瀚慖f the test lamp illuminates, test the control circuit for a short to voltage.
8. If all circuits test normal, replace the K40 seat memory control module.
