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Home >> Kia >> 2016 >> Cadenza Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2127: Accelerator Position Sensor 2 Signal Circuit Low Input >> Wiring Inspection >> Signal Circuit Inspection
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Signal Circuit Inspection

■ Check short to ground in harness 

  1. IG "OFF".
  2. Disconnect APS connector and PCM connector.
  3. Measure resistance between APS2 signal terminal of APS harness connector and chassis ground. (Measurement "A")
  4. Measure resistance between APS2 signal and APS1 (2) ground terminals of APS harness connector. (Measurement "B")

    Specification:  Infinite

  5. Is the measured resistance within specification?

    YES 

    • Go to "Check open in harness" below.

    NO 

■ Check open in harness 

  1. IG "OFF". Disconnect APS connector and PCM connector.
  2. Measure resistance between APS2 signal terminal of APS harness connector and APS2 signal terminal of PCM harness connector.

    Specification:  Approx. below 1Ω.

  3. Is the measured resistance within specification?

    YES 

    NO