Signal Circuit Inspection (Abs Vehicle)

Check short to ground in harness.
1. Key "OFF".
2. Disconnect ECM/PCM connector.
3. Disconnect ABS control unit.
4. Measure resistance between terminal 20/C01-1 of ECM/PCM harness connector and chassis ground.
  Measure resistance between terminal 64/C01 of ECM/PCM harness connector and chassis ground.
  
  Specification: Infinite
  
  Fig 1: Measuring Resistance Between Terminal 20/C01-1 Of ECM/PCM Harness Connector And Ground
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 2: Measuring Resistance Between Terminal 64/C01 Of ECM/PCM Harness Connector And Ground
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured resistance within specification?
  YES
  - Go to 2 "Check open in harness" as follows.
  NO
  - Repair short to ground in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for open in harness.
1. Key "OFF".
2. Disconnect ECM/PCM connector.
3. Disconnect ABS control unit.
4. Measure resistance between terminal 20/C01-1 of ECM/PCM harness connector and terminal 3/E51 of ABS control module harness connector. (A/T)
  Measure resistance between terminal 64/C01 of ECM/PCM harness connector and terminal 3/E51 of ABS control module harness connector. (M/T)
  
  Specification: Approx. below 1Ω
  
  Fig 3: Measuring Resistance Between Terminal 20/C01-1 Of ECM/PCM And Terminal 3/E51 Of ABS Connector (A/T)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 4: Measuring Resistance Between Terminal 64/C01 Of ECM/PCM And Terminal 3/E51 Of ABS Connector (M/T)
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION (ABS VEHICLE) " procedure.
  NO
  - Repair Open circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.