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Home >> Cadillac >> 2015 >> SRX Base, 4D Utility >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Automatic >> Diagnostic Information and Procedures >> DTC B0163, B0183, or B1405: Passenger Compartment Temperature Sensor/Solar Sensor/Module Reference >> Circuit/System Verification
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Circuit/System Verification

  1. Verify DTCs B0163 and B0183 are not both set concurrently.
    • If both DTCs are set 

      Refer to Low Reference Test.

    • If both DTCs are not set 
  2. Verify DTC B0163, B0183, or B1405 is not set.
    • If one of the DTCs is set 

      Refer to the appropriate diagnostic in Circuit/System Testing.

    • If none of the DTCs are set 
  3. Verify the B10B Ambient Light/Sunload Sensor is accurate.
    • If the sensor is not accurate 
    1. Perform the following Circuit/System Testing in the order listed below:
      • Circuit/System Testing - Low Reference Test
      • Circuit/System Testing - DTC B0163
      • Circuit/System Testing - DTC B1405
      • Circuit/System Testing - DTC B0183
    • If the sensor is accurate 
  4. All OK.
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