Inspection Procedures

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.

1. Turn ignition switch to OFF position and disconnect OCV connector.
2. Measure resistance between terminals 1 and 2 of the OCV connector.
   • 6.9 +/- 7.9° at 20°C (68°F) 
   Fig 1: Measuring Resistance Between Terminals 1 & 2 Of OCV Connector

   Courtesy of HYUNDAI MOTOR CO.
3. Inspect the signal waveform of the OCV using a Hi-scan (Pro).

• Refer to  SIGNAL WAVEFORM   for more information. 

Is resistance within specification? 

Yes: Go to next

No: Replace OCV.

1. Turn ignition switch to ON position and measure voltage between terminal 1 of the OCV harness connector and chassis ground.

Fig 2: Measuring Voltage Between Terminal 1 Of OCV Harness Connector & Chassis Ground

Courtesy of HYUNDAI MOTOR CO.

• Specification: approximately B+ 

Is voltage within specification? 

Yes: Go to next

No: Repair open or short to chassis ground in harness.

1. Keep the ECM and OCV connectors disconnected.
2. Measure resistance between terminal 2 of the OCV harness connector and chassis ground.

Fig 3: Measuring Resistance Between Terminal 2 Of OCV Harness Connector & Chassis Ground

Courtesy of HYUNDAI MOTOR CO.

• Specification: infinite 

Does resistance indicate open? 

Yes: Proceed with ECM PROBLEM PROCEDURE  .

No: Repair short to chassis ground in harness.