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Home >> Buick >> 2015 >> Verano Base >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Wiring Systems And Power Management - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B144A: RUN Power Relay Circuit. >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the KR148 Steering Wheel Heater Relay turns ON and OFF when commanding the Auxiliary Ignition Run Relay On and Off with a scan tool.
    • If the KR148 Steering Wheel Heater Relay does not turn ON and OFF 

      Refer to Circuit/System Testing

    • If the KR148 Steering Wheel Heater Relay turns ON and OFF 
  3. All OK.
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