Refer to DTC P0120 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 DTC P0220 THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT DTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT DTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRELATION .
HINT:
This is the purpose of troubleshooting the throttle position sensor.