4. Check For Open In Harness

1. Turn ignition switch to OFF position and disconnect ECM connector.
2. Measure resistance between terminal 3 of the MAFS harness connector and 60 of the ECM harness connector.
3. Measure resistance between terminal of the MAFS harness connector and 48 of the ECM harness connector.
   Fig 1: Checking MAFS Harness For Open Circuit

   Courtesy of HYUNDAI MOTOR CO.

• Specification : below 1Ω 

Does resistance indicate continuity? 

Yes: Go to next step.

No: Repair open in harness.