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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Wiring Systems And Power Management - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B144B >> Circuit/System Verification

Circuit/System Verification

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  1. Verify the KR73 Ignition Main Relay clicks ON and OFF when commanding the Run/Crank Relay On and Off with a scan tool.
    • If the KR73 Ignition Main Relay does not click ON and OFF 

      Refer to Circuit/System Testing.

    • Go to next step: If the KR73 Ignition Main Relay clicks ON and OFF 
  2. All OK.
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