Can Low Line Inspection

Check for Open in harness.
1. Ignition "OFF".
2. Disconnect ECM and TCM connectors.
3. Measure resistance between terminals 37 of the ECM harness connector and 4 of the TCM harness connector.
  Specification: Approx. 0Ω
  
  Fig 1: Measuring Resistance Between Terminals 37 Of ECM Harness Connector And 4 Of TCM Harness Connector
  Courtesy of HYUNDAI MOTOR CO.
4. Is resistance within the specification?
  YES:
  - Go to next step 2.
  NO:
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to ground in harness.
1. Measure resistance between terminal 37 of the ECM harness connector and chassis ground.
  Specification: Infinite
  
  Fig 2: Measuring Resistance Between Terminal 37 Of ECM Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
2. Is resistance within the specification?
  YES:
  - Go to step 3.
  NO:
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to battery in harness.
1. Reconnect the ECM connector.
2. Ignition "ON" & Engine "OFF".
3. Measure voltage between terminal 37 of the ECM harness connector and chassis ground.
  Specification: Approx. 0V
  
  Fig 3: Measuring Voltage Between Terminal 37 Of ECM Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
4. Is voltage 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:
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.