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Home >> Hyundai >> 2009 >> Elantra SE, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance >> Signal Waveform And Data
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Signal Waveform And Data

DTC P0121 SIGNAL WAVEFORM AND DATA

Test Condition Scan Tool Parameter Scan Tool Screen
TPS VOLTAGE
Normal value with ignition "ON" & engine "OFF" Accelerator pedal released 0.20~0.47V Refer to Fig. 1 in Fig 1
Normal value with engine ON & accelerator pedal fully depressed 2~4.7V -
Abnormal value with ignition "ON" & engine "OFF" Power circuit open 0.01V Refer to Fig. 2 in Fig 1
Ground circuit open 4.99V Refer to Fig. 3 in Fig 1
TPS signal circuit open 4.99V Refer to Fig. 4 in Fig 1
TPS signal circuit short to ground Approx. 0V -
TPS signal circuit short to battery Above 4.99V -
Fig 1: Scan Tool Display - TPS Signal Waveform And Data
G05363801Courtesy of HYUNDAI MOTOR CO.