Signal Circuit Inspection

[WITH ABS] 

1. Check for open in circuit.
   1. Ignition "OFF".
   2. Disconnect PCM and ABS Control Module connectors
   3. Measure resistance between terminals 39 of the PCM harness connector and 3 of the ABS Control Module harness connector (W/ABS)

      Specification: Approx. 0Ω

      Fig 1: Measuring Resistance Between Terminals Of PCM Harness Connector And ABS Control Module Harness Connector (W/ABS)

      Courtesy of HYUNDAI MOTOR CO.
   4. Is resistance within the specification?

      YES: 

      • Go to next step below.

      NO: 

      • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
2. Check for short to ground in circuit.
   1. Measure resistance between terminal 39 of the PCM harness connector and chassis ground.

      Specification: Infinite

      Fig 2: Measuring Resistance Between Terminal 39 Of PCM Harness Connector And Chassis Ground

      Courtesy of HYUNDAI MOTOR CO.
   2. Is resistance within the specification?

      YES: 

      • 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.

[WITHOUT ABS SYSTEM] 

1. Check for open in circuit.
   1. Ignition "OFF".
   2. Disconnect PCM and wheel speed sensor (front right) harness connector.
   3. Measure resistance between wheel speed sensor harness connector and PCM harness connector.

      Specification: Approx. 0Ω

      • Terminal 1 (sensor) & Terminal 18 (PCM)
      • Terminal 2 (sensor) & Terminal 17 (PCM)
        Fig 3: Measuring Resistance Between Wheel Speed Sensor Harness Connector And PCM Harness Connector

        Courtesy of HYUNDAI MOTOR CO.
   4. Is resistance within the specification.

      YES: 

      • Go to next step below.

      NO: 

      • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
2. Check for short to ground in circuit.
   1. Measure resistance between terminal 17 of the PCM harness connector and chassis ground.
   2. Measure resistance between terminal 18 of the PCM harness connector and chassis ground.

      Specification: Infinite

      Fig 4: Measuring Resistance Between Terminal Of PCM Harness Connector And Chassis Ground

      Courtesy of HYUNDAI MOTOR CO.
   3. Is resistance within the specification?

      YES: 

      • 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.