Control Circuit Inspection

2005 Hyundai Santa Fe GLS, 2.7 D, AWDSECTION Control Circuit Inspection
  1. Check for short to battery in control circuit.
    1. Ignition "OFF".
    2. Disconnect ECM connectors.
    3. Ignition "ON" & Engine "OFF".
    4. Measure voltage between terminal 2 of the injector harness connector and chassis ground

      Specification: Approx. 0V

      Fig 1: Measuring Voltage Between Terminal 2 Of The Injector Harness Connector And Chassis Ground
      G03846285Courtesy of HYUNDAI MOTOR CO.
    5. Is voltage within the specification?

      YES 

      • Go to next step.

      NO 

  2. Check for open in control circuit.
    1. Ignition "OFF".
    2. Measure resistance between terminals 2 of the injector harness connector and 37 of the ECM harness connector.

      Specification: Approx. 0Ω

      Fig 2: Measuring Resistance Between Terminals 2 And 37 Of ECM Harness Connector
      G03846286Courtesy of HYUNDAI MOTOR CO.
    3. Is resistance within the specification?

      YES 

      • Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

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:

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