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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Hybrid/EV System Heating And Cooling) >> Diagnostic Information and Procedures >> DTC P0CBD-P0CBF: Drive Motor Coolant Temperature Sensor >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Verify the coolant level of the starter/generator cooling system is normal.
    • If the coolant level is low 

      Inspect the starter/generator cooling system for any leaks.

    • If the coolant level is normal 
  2. Verify the starter/generator cooling system auxiliary radiator is clear of any debris, bent fins, or other damage which may inhibit airflow.
    • If debris are found 

      Clean the auxiliary radiator.

    • If damage is found 

      Replace the auxiliary radiator.

    • If no damage or debris are found 
  3. Verify the starter/generator cooling system hoses are properly routed and are not kinked.
    • If any hoses are improperly routed or kinked 

      Removed and properly route the hose.

    • If all hoses are routed properly and are not kinked 
  4. Ignition ON.
  5. Verify the scan tool Motor A Coolant Temperature Sensor parameter is between -40°C and 85°C.
    • If not between -40°C and 85°C 

      Refer to Circuit/System Testing.

    • If between -40°C and 85°C 
  6. All OK.
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