Inspection Procedures

CHECK OTS AND ECM CONNECTORS
1. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
  Are all connectors good?
Yes: Go to next

No: Repair or replace it.
CHECK OTS RESISTANCE
1. Turn ignition switch to OFF and disconnect OTS connector.
2. Check resistance of OTS between terminals 1 and 2 of the OTS connector.
- Refer to SPECIFICATIONS for more information.
Is resistance within specification?

Fig 1: Checking Resistance Of OTS Between Terminals 1 & 2 Of OTS Connector
Courtesy of HYUNDAI MOTOR CO.

Yes: Go to next

No: Replace OTS.
CHECK POWER TO OTS
1. Turn ignition switch to OFF position.
2. Turn ignition switch to ON position.
3. Measure voltage between terminal 1 of the OTS harness connector and chassis ground.
Fig 2: Measuring Voltage Between Terminal 1 Of OTS Harness Connector & Chassis Ground
Courtesy of HYUNDAI MOTOR CO.
- Specification : approximately 5V
Is voltage within specification?

Yes: Go to next

No: Repair open or short to chassis ground in harness.
CHECK FOR OPEN IN HARNESS
1. Turn ignition switch to OFF position.
2. Disconnect ECM connector.
3. Check for open in signal harness between terminal 1 of the OTS harness connector and 76 of the ECM harness connector.
Fig 3: Checking For Open In Signal Harness Between Terminal 1 Of OTS Harness Connector & 76 Of ECM Harness Connector
Courtesy of HYUNDAI MOTOR CO.
- Specifications: below 1ohm
Does resistance indicate continuity?

Yes: Go to next

No: Repair open in harness.
CHECK FOR OPEN IN HARNESS
1. Check for open in ground harness between terminal 2 of the OTS harness connector and 52 of the ECM harness connector.
Fig 4: Checking For Open In Ground Harness Between Terminal 2 Of OTS Harness Connector & 52 Of ECM Harness Connector
Courtesy of HYUNDAI MOTOR CO.
- Specifications: below 1ohm
Does each resistance indicate continuity?

Yes: Go to next

No: Repair open in harness.
CHECK FOR SHORT TO POWER IN HARNESS
1. Turn ignition switch to ON position.
2. Check for short to power in signal harness between terminal 1 of the OTS harness connector and chassis ground.
Fig 5: Check For Short To Power In Signal Harness Between Terminal 1 Of OTS Harness Connector & Chassis Ground
Courtesy of HYUNDAI MOTOR CO.
- Specifications: below 0.5V
Is voltage within specification?

Yes: Proceed with ECM PROBLEM PROCEDURE .

No: Repair short to power in harness.