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Home >> Chevrolet >> 2016 >> Spark EV >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Control System >> Diagnostic Information and Procedures >> DTC P0641, P0697, or P06A3: 5V Reference 1 Circuit/5V Reference 3 Circuit/5V Reference 4 Circuit >> Circuit/System Verification
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Circuit/System Verification

  1. Verify the scan tool parameters listed below display OK:
    • 5V Reference 1 Circuit Status
    • 5V Reference 3 Circuit Status
    • 5V Reference 4 Circuit Status
    • If not OK 

      Refer to Circuit/System Testing.

    • If OK 
  2. Verify the scan tool parameters listed below display 4.8-5.2V:
    • 5V Reference 1
    • 5V Reference 3
    • 5V Reference 4
    • If not between 4.8-5.2V 

      Refer to Circuit/System Testing.

    • If between 4.8-5.2V 
  3. All OK.