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Home › Hyundai › 2018 › Accent SEL › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) › DTC P2123-00: Accelerator Position Sensor 1 Signal Circuit High Input › DTC Information › DTC Detecting Condition

DTC Information: DTC Detecting Condition

Troubleshooting Condition Possible Cause
Main Action
  • Signal check, high
  1. Poor connection
  2. Short to battery in signal circuit
  3. Open in ground circuit
  4. Faulty APS
  5. Faulty ECM
Prerequisite Condition
  • Turn the ignition switch "ON"
Threshold Value
  • APS1 voltage is higher than 4.8V
Diagnostic Time
  • Continuous
MIL
  • 1 driving cycle
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