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Home >> Hyundai >> 2016 >> Santa Fe XL Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2127: Accelerator Position Sensor 2 Signal Circuit Low Input >> Specification >> Signal Waveform & Data
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Signal Waveform & Data

Fig 1: Screen Display - Normal Waveform Of APS 1 & APS 2 With No Acceleration
G10580710Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: Screen Display - Normal Waveform Of APS 1 & APS 2 With Acceleration
G10580711Courtesy of HYUNDAI MOTOR AMERICA
Fig 3: Screen Display - Normal Data Of APS 1 & APS 2 At IG ON
G10580712Courtesy of HYUNDAI MOTOR AMERICA
Fig 4: Screen Display - Abnormal Data Of APS 1 & APS 2 When APS 1 & APS 2 Circuit Open
G10580713Courtesy of HYUNDAI MOTOR AMERICA

Signal waveform of APS 1 & 2 shows that APS 2 increases voltage just half of APS 1 voltage increase when accelerating.