LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2021 >> K5 GT-Line, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (5 Of 7) >> DTC P2123-00: Accelerator Position Sensor 1 Signal Circuit High Input >> DTC Information >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Check the voltage
  • Poor connector connection or damaged harness
  • Faulty APS1 (hall type)
  • Opened ground circuit
  • Signal circuit shorted to battery
Threshold Value
  • When APS1 voltage is higher than 4.8V
Diagnostic Time
  • 0.2s
MIL ON Condition
  • 1 driving cycle