Tahoe 4WD V8-5.3L (2007)
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Terminal 7 seat back blower motor speed control
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If the test lamp does not illuminate, test the appropriate circuit for an open/high resistance. If the circuit tests normal, replace the CCSM.
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If the test lamp is always ON, test the appropriate circuit for a short to voltage. If the circuit tests normal, replace the CCSM.
19. If all circuits test normal, test or replace the appropriate heat/cool seat ventilation blower.
REPAIR INSTRUCTIONS
Heat/Cool Ventilation Blower Thermistor
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Seat Back Ventilation Heat and Cool Blower Replacement (Cadillac)
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Seat Cushion Ventilation Heat and Cool Blower Replacement (Cadillac)
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Control Module References for the memory seat module or climate control seat module replacement, setup, and programming. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification
Tests and Procedures See: Testing and Inspection/Programming and Relearning