Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
184
2. Installation Position
It’s installed on throttle body.
3.
Wiring diagram of
throttle position sensor
Pin18: 5V power supply
Pin26: Throttle position sensor signal
Pin39: 5V grounding
4. Diagnosis
Poor acceleration, etc.
5. Solutions
Mainly inspect sensor and ECU wiring harness for short circuit, open circuit, grounding problems;
Shift the multimeter to Ohm measurement scale and connect two probes of the multimeter to 1# and
2# pines of the sensor respectively to measure the resistance. The measurement at ambient
temperature shall be 2k
Ω
±20%. Connect two probes to the 1# and 3# pins respectively and rotate
Fig. 4.3.006
Throttle Position
Sensor
