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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 470 (HVAC System - Manual) >> Diagnostic Information and Procedures >> DTC B393B: Air Conditioning Compressor >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Static Test

  1. Ignition OFF, disconnect the harness connector at the Q46 A/C Compressor Solenoid Valve.
  2. Test for 7-15 Ω between B+ circuit terminal 2 and control circuit terminal 1.
    • If less than 7 Ω or greater than 15 Ω 

      Replace the Q46 A/C Compressor Solenoid Valve

    • If between 7-15 Ω 
  3. Test for infinite resistance between each terminal and the Q46 A/C Compressor Solenoid Valve housing/case.
    • If less than infinite resistance 

      Replace the Q46 A/C Compressor Solenoid Valve

    • If infinite resistance 
  4. All OK
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