Equinox FWD V6-3.0L (2010)
Installed))
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
Note: For a valid test of the heated seat operation, you must sit in the seat for at least a 5 minute period for which the heat has time to reach the
seat surface.
1. Ignition ON, operate both heated seats. The seat cushion and seat back should get warm for both seats.
‹› If both the driver and front passenger heated seats are inoperative, refer to Driver and Passenger Heated Seats Inoperative.
‹› If just one of the heated seats is inoperative or always ON, refer to Heated Seat Malfunction.
2. Observe the heated seat switch temperature indicators while pressing the appropriate heated seat switch through the high, medium, and low
positions. The appropriate indicators should illuminate as the switch is activated.
‹› If the heated seat operates normal, but one or all of the switch temperature indicators are inoperative or always ON, refer to Heated Seat
Switch Indicator Malfunction.
‹› If three temperature indicators are flashing, there is a problem with the heating element circuit. Refer to Heated Seat Malfunction.
‹› If one temperature indicator is flashing, there is a problem with the temperature sensor circuit. Refer to Heated Seat Malfunction.
Circuit/System Testing
Driver and Passenger Heated Seats Inoperative
1. Ignition OFF, disconnect the X4 harness connector at the seat heating control module.
2. Test for less than 5 Ohms between the ground circuit terminals listed below and ground:
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Terminal 2
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Terminal 5
‹› If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminals listed below and ground:
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Terminal 3
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Terminal 6
‹› If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ignition OFF, connect the X2 harness connector at seat heating control module and disconnect the harness connector at the heated seat switch.
5. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
‹› If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
seat heating control module.
6. If all circuits test normal, replace the seat heating control module.
Heated Seat Malfunction
1. Ignition OFF, disconnect the X5 harness connector at the seat heating control module.
2. Install a 3 A fused jumper wire between the B+ circuit terminal 1 and B+.
3. Connect a test lamp between the appropriate signal circuit terminal listed below and ground.
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Driver heated seat switch terminal 2
