Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Throttle/pedal position sensor/switch ”a” circuit

Toyota Corolla (E120): Throttle/pedal position sensor/switch ”a” circuit

Dtc p0120 throttle/pedal position sensor/switch ”a” circuit

Dtc p0122 throttle/pedal position sensor/switch ”a” circuit low input

Dtc p0123 throttle/pedal position sensor/switch ”a” circuit high input

Hint

: this is the purpose for the ”throttle position sensor”.

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Circuit description
The d squib circuit consists of the airbag sensor assy center, spiral cable sub–assy and horn button assy. It causes the srs to deploy when the srs deployment conditions are satisfied. Dtc b0100/13 is recorded when a short is detected in the d squib circuit. Wiring diagram ...

System description
The ecm uses signals from the vehicle speed sensor and crankshaft position sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear). Then the ecm compares the actual gear with the shift schedule in the ecm memory to detect the mechanical trouble of the shift solenoid valves, th ...

Inspection procedure
1 Inspect shift solenoid valve(s2) Remove the shift solenoid valve s2.  measure the resistance according to the value(s) in the table below. Standard: Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (–) battery lead to the so ...