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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System Diagnosis - 2.0L (1 Of 3) (Except HEV)) >> DTC P0123: Throttle Pedal Position Sensor Switch 'A' Circuit High Input >> Wiring Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check short to battery in harness 

  1. IG "OFF". Disconnect ETC Motor & TPS connector.
  2. IG "ON".
  3. Measure voltage between TPS 1 signal terminal of ETC harness connector and chassis ground.

    Specification:  Approx. 1.7 V

  4. Is resistance within specification?

    YES 

    • Go to next step below.

    NO