LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2016 >> Elantra Value Edition >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.8L (2 Of 2) >> DTC P2123: Throttle/Pedal Position Sensor/Switch 'D' Circuit High Input >> DTC Description >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Description: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical Check
  1. Open in ground circuit
  2. Short to battery in signal circuit
  3. Poor connection or damaged harness
  4. Faulty APS1
Enable Conditions
  • No error for power supply circuit in APS1
Threshold Value
  • APS1 > 4.7V
Diagnostic Time
  • 0.3 sec.
MIL On Condition
  • 1 Drive Cycle
Limp-Home
  • Forced limited power mode: The PCM/ECM limits opening angle of the throttle valve to max. 50% and engine torque to a certain pre-determined value.
  • After idle recognition, the PCM/ECM uses APS2 signal to calculate the current opening angle of the throttle valve.
scientia non olet · About LEMON Manuals