SRX AWD V6-3.0L (2010)
Diagnostic Fault Information
Circuit/System Description
The left and right rear heated seats are controlled by separate heated seat switches located in the auxiliary radio/HVAC controls. When a heated seat
switch is pressed, a serial data message is sent to the rear seat control module indicating the heated seat command. In response to this message, the rear
seat heating control module applies battery positive voltage through the element control circuit to the appropriate seat heating elements. The rear seat
heating control module then sends a serial data message back to the auxiliary radio/HVAC controls to either illuminate or turn off the heated seat
indicator.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics (See: Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Rear Heated Seats Description and Operation (See: Description and Operation/Rear Heated Seats)
Electrical Information Reference
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Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
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Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Connector
Repairs/Connector Repairs)
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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)
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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 Verification
1. Engine ON, observe the scan tool Left Rear Seat Heating/Venting/Cooling Mode parameter while pressing the left rear HEATED seat switch. The
reading should change between Off and Back & Cushion Heat.
‹› If not the specified value, replace the A21 auxiliary radio/HVAC controls.
2. Observe the scan tool Right Rear Seat Heating/Venting/Cooling Mode parameter while pressing the right rear HEATED seat switch. The reading
should change between Off and Back & Cushion Heat.
‹› If not the specified value, replace the A21 auxiliary radio/HVAC controls.
