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Signal Circuit Inspection

WARNING: This page is about a different car, the 2016 Hyundai Elantra GT and 2015 Hyundai Elantra GT. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check ignition lock switch pull-up voltage
    1. IG KEY "OFF", ENGINE "OFF".
    2. Disconnect ignition lock switch connector.
    3. IG KEY "ON".
    4. Measure the voltage between signal terminal of ignition lock switch harness connector and chassis ground.

      Specification:  11.5V ~ 13.0V

  2. Check open in ignition lock switch signal circuit
    1. IG KEY "OFF", ENGINE "OFF".
    2. Disconnect ignition lock switch connector and ECM connector.
    3. Check continuity between signal terminal of lock switch signal harness connector and ECM harness connector.

      Specification:  Continuity (below 1.0Ω)

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