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Signal Circuit Inspection

ABS Vehicle 

  1. Check short to ground in harness
    1. Key "OFF".
    2. Disconnect PCM connector.
    3. Disconnect ABS control unit.
    4. Measure resistance between terminal 20/C01-1 of PCM harness connector and chassis ground. [A/T] Measure resistance between terminal 64/C01 of ECM harness connector and chassis ground. [M/T]
      1. Specification : Infinite
        Fig 1: Measuring Resistance Between Terminal 20/C01-1 Of PCM Harness Connector And Chassis Ground (A/T)
        G06830958Courtesy of KIA MOTORS AMERICA, INC.
        Fig 2: Measuring Resistance Between Terminal 64/C01 Of ECM Harness Connector And Chassis Ground (M/T)
        G06830959Courtesy of KIA MOTORS AMERICA, INC.
    5. Is the measured resistance within specification?

      YES

      1. Go to " 2 Check open in harness" as follows.

      NO

      1. Repair short to ground in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  2. Check for open in harness
    1. Key "OFF".
    2. Disconnect PCM connector.
    3. Disconnect ABS control unit.
    4. Measure resistance between terminal 20/C01-1 of PCM harness connector and terminal 3/E51 of ABS control module harness connector. (A/T)

      Measure resistance between terminal 64/C01 of ECM harness connector and terminal 3/E51 of ABS control module harness connector. (M/T)

      1. Specification : Approx. below 1Ω
        Fig 3: Measuring Resistance Between Terminal 20/C01-1 Of PCM And Terminal 3/E51 Of ABS Control Module Harness Connector (A/T)
        G06830960Courtesy of KIA MOTORS AMERICA, INC.
        Fig 4: Measuring Resistance Between Terminal 64/C01 Of ECM And Terminal 3/E51 Of ABS Control Module Harness Connector (M/T)
        G06830961Courtesy of KIA MOTORS AMERICA, INC.
    5. Is the measured resistance within specifications?

      YES

      1. Go to "COMPONENT INSPECTION " procedure.

      NO

      1. Repair Open circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Non-ABS Vehicle 

  1. Check short to ground in harness.
    1. Key "OFF".
    2. Disconnect PCM connector.
    3. Disconnect wheel speed sensor connector.
    4. Measure resistance between terminal 2/E50 of wheel speed sensor harness connector and chassis ground.
      1. Specification : Infinite
        Fig 5: Measuring Resistance Between Terminal 2/E50 Of Wheel Speed Sensor Harness Connector And Chassis Ground
        G06830962Courtesy of KIA MOTORS AMERICA, INC.
    5. Is the measured resistance within specifications?

      YES

      1. Go to " 2 Check open in harness" as follows.

      NO

      1. Repair short to ground in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  2. Check open in harness
    1. Key "OFF".
    2. Disconnect PCM connector.
    3. Disconnect wheel speed sensor connector.
    4. Measure resistance between terminal 60/C01-2 of PCM harness connector and terminal 2/E50 harness connector. Measure resistance between terminal 79/C01 of ECM harness connector and terminal 2/E50 harness connector.
      1. Specification : Approx. below 1Ω
        Fig 6: Measuring Resistance Between Terminal 60/C01-2 Of PCM Harness Connector And Terminal 2/E50 Harness Connector
        G06830963Courtesy of KIA MOTORS AMERICA, INC.
    5. Is the measured resistance within specifications?

      YES

      1. Go to "COMPONENT INSPECTION " procedure.

      NO

      1. Repair Open circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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