Hint:
These dtcs relate to the accelerator pedal position (app) sensor.
Description
Hint:
This etcs (electronic throttle control system) does not use a throttle cable.
The app sensor is mounted on the accelerator pedal bracket and has 2 sensor circuits: vpa (main) and vpa2 (sub). This sensor is a non-contact type it uses hall-effect elements in order to yield accurate signals even in extreme driving conditions, such as at high speeds as well as very low speeds. The voltage, which is applied to terminals vpa and vpa2 of the ecm, varies between 0 v and 5 v in proportion to the operating angle of the accelerator pedal (throttle valve). A signal from vpa indicates the actual accelerator pedal opening angle (throttle valve opening angle) and is used for engine control. A signal from vpa2 conveys the status of the vpa circuit and is used to check the app sensor itself.
The ecm monitors the actual accelerator pedal opening angle (throttle valve opening angle) through the signals from vpa and vpa2, and controls the throttle actuator according to these signals.
Hint:
When any of these dtcs are set, check the app sensor voltage by selecting the following menu items on the intelligent tester: diagnosis / enhanced obd ii / data list / primary / accel pos #1 and accel pos #2.
Hint:
Monitor description
When either output voltage of vpa or vpa2 deviates from the standard range, or the difference between the output voltages of the 2 sensor circuits is less than the threshold, the ecm determines that there is a malfunction in the app sensor. The ecm then illuminates the mil and sets a dtc.
Example: when the output voltage of vpa drops below 0.4 V for more than 0.5 Seconds when the accelerator pedal is fully depressed, dtc p2122 is set.
If the malfunction is not repaired successfully, a dtc is set 2 seconds after the engine is next started.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Component operating range
Fail-safe
When any of dtcs p2120, p2121, p2122, p2123, p2125, p2127, p2128 and p2138 are set, the ecm enters fail-safe mode. If either of the 2 sensor circuit malfunctions, the ecm uses the remaining circuit to calculate the accelerator pedal position to allow the vehicle to continue driving. If both of the circuits malfunction, the ecm regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.
Fail-safe mode continues until a pass condition is detected, and the ignition switch is turned off.
Wiring diagram
Inspection procedure
Hint:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
Standard voltage
Standard resistance (check for open)
Standard resistance (check for short)
Standard voltage
Correct driving posture
Adjust the angle of the seatback
so that you are sitting
straight up and so that you do
not have to lean forward to
steer.
Adjust the seat so that you can
depress the pedals fully and so
that your arms bend slightly at
the elbow when gripping the
steering wheel.
Lock the head ...
Cargo and luggage
Take notice of the following
information about storage
precautions, cargo capacity
and load.
WARNING
â– Things that must not be carried
in the luggage compartment
The following things may cause a
fire if loaded in the luggage compartment:
Receptacles containing gasoline
Aerosol cans
â– Storage p ...
Turning on the high beam headlights
With the headlights on, push
the lever away from you to turn
on the high beams.
Pull the lever toward you to the
center position to turn the high
beams off.
Pull the lever toward you and
release it to flash the high
beams once.
You can flash the high beams with
the headlig ...