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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Hybrid/EV System Heating And Cooling) >> Diagnostic Information and Procedures >> DTC P0CEC: Hybrid/EV Electronics Coolant Pump Control Circuit >> Circuit/System Verification

Circuit/System Verification

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  1. Vehicle On.
  2. Verify the hybrid/EV powertrain control module 2 parameters listed below when commanding the hybrid/EV electronics coolant pump between 20% and 90% with a scan tool.
    • Hybrid/EV Electronics Coolant Pump Command to be 10% or greater.
    • Hybrid/EV Electronics Coolant Pump Feedback to be 50% +/-5%.
    • Hybrid/EV Electronics Coolant Pump Speed is greater than 500 RPM.
    • The scan tool parameters listed are not within the specified ranges 

      Refer to Circuit/System Testing.

    • The scan tool parameters listed are within the specified ranges 
  3. All OK.
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