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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (Engine Control System Diagnosis - 2.0L (3 Of 3) (Except HEV)) >> DTC P2122: Accelerator Position Sensor 1 Signal Circuit Low Input >> Wiring Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

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

■ Check for Short to Ground in Signal circuit 

  1. IG "OFF".
  2. Disconnect PCM and APS harness connector.
  3. IG "ON".
  4. Measure resistance between APS1 signal terminal of APS harness connector and chassis ground.

    Specification:  Infinite

  5. Is resistance within specification?

    YES 

    • Go to next procedure.

    NO 

■ Check for Open in Signal circuit 

  1. IG "OFF".
  2. Disconnect APS harness connector and PCM harness connector.
  3. Measure resistance between both ends of APS1 signal line.

    Specification:  Below 1 Ω

  4. Is resistance within specification?

    YES 

    • Go to next procedure.

    NO 

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