DTC P0121: THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFORMANCE MALFUNCTION, DTC P0122: THROTTLE POSITION SENSOR CIRCUIT LOW INPUT & DTC P0123: THROTTLE POSITION SENSOR CIRCUIT HIGH INPUT Kia Spectra I рестайлинг

Note. Before performing any DIAGNOSTIC TEST, refer toWARNINGS, CAUTIONS and NOTES in DIAGNOSTIC TESTS .

Note. Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.

Diagnostic Aids

Malfunction code will set if Throttle position (TP) sensor voltage is lower than 1.4 volts when ignition is turn on, or voltage is higher than 4.86 volts when ignition is turn on. Also when a difference between MAF values is higher than threshold value and fuel system error. Check for following possible problems

1. Open or short between TP sensor and Engine Control Module (ECM).
2. Short between TP sensor wires.
3. Misplaced, loose or corroded connector terminals.
4. Faulty TP sensor.