Power Supply Circuit Inspection

2003 Hyundai XG350 LSECTION Power Supply Circuit Inspection
  1. Ignition "OFF".
  2. Disconnect MAP sensor connector.
  3. Ignition "ON" & Engine "OFF".
  4. Measure voltage between terminal "2" of the MAP sensor harness connector and chassis ground.

    Specification: Approx. 5V

    Fig 1: Measuring Voltage Between Terminal 2 Of MAP Sensor Harness Connector And Chassis Ground
    G07377564
  5. Is the measured voltage within specifications?

    YES

    NO

    • Check for an open or short to ground in harness between the PCM and the MAP sensor.
    • Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIRΒ " procedure.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.