FixVault

3. Check For Short To Ground In Harness

  1. Keep the ECM and TCM connectors disconnected.
  2. Measure the resistance between terminal 7 of the ECM harness connector and chassis ground.
  3. Measure the resistance between terminal 6 of the ECM harness connector and chassis ground.
    Fig 1: Checking TCM To ECM Harness For Short To Ground
    G00746708Courtesy of HYUNDAI MOTOR CO.

Does each resistance indicate open? 

Yes: Go to next step.

No: Repair short to chassis ground in harness.