Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSHYUNDAI2009TUCSON LIMITED, 2.0 BREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDTC TROUBLESHOOTING PROCEDURES (2.0L)TROUBLESHOOTING FOR DTCP0230 FUEL PUMP CIRCUIT MALFUNCTIONCONTROL CIRCUIT INSPECTION

2009 Hyundai Tucson Limited, 2.0 B

Control Circuit Inspection

2009 Hyundai Tucson Limited, 2.0 BSECTION Control Circuit Inspection

Check for short to ground in control circuit
1. Ignition "OFF" & Relay connector: Disconnected.
2. Measure resistance between terminal 3 of the relay harness connector and chassis ground.
  Specification : Infinite
  
  Fig 1: Measuring Resistance Between Terminal 3 Of Relay Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
3. Is resistance within the specification?
  YES
  - Go to next step as below.
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to power in control circuit
1. Disconnect PCM connector
2. Ignition "ON" & Engine "OFF"
3. Measure voltage between terminal 3 of the relay harness connector and chassis ground
  Specification : Approx 0V
  
  Fig 2: Measuring Voltage Between Terminal 3 Of Relay Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is voltage within the specification?
  YES
  - Go to next step as below.
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for open in control harness
1. Measure resistance between terminals 3 of the relay harness connector and 69 of the PCM harness connector.
  Specification : Approx 0Ω
  
  Fig 3: Measuring Resistance Between Terminals 3 Of Relay Harness Connector And 69 PCM Harness Connector
  Courtesy of HYUNDAI MOTOR AMERICA
2. Is resistance within the specification?
  YES
  - Thoroughly Check for poor connection between PCM 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
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " 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:

• 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.