Control Circuit Inspection

Check for short between battery and Pump control harness
1. Ignition "OFF"
2. Disconnect DM-TL connector.
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between terminal 1 of DM-TL harness connector and chassis ground.
  Specification: approximately 4.2V
  
  Fig 1: Measuring Voltage Between Terminal 1 Of DM-TL Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
5. Is measure voltage within Specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check for short to battery in Pump control harness.
  - Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure
  NOTE:
  In case, when the DM-TL connector is disconnected, the voltage of DM-TL terminal 4 is 12V.
  - Possible cause: Short circuit in battery power line after fuse. (10A ECU #1)