Двигатель. Toyota Rav4. Aca30, 33, 38 Ala30
Система Управления Двигателем 2Ad-Fhv. Toyota Rav4. Aca30, 33, 38 Ala30
READ VALUE OF ACCELERATOR PEDAL POSITION SENSOR
CHECK WIRE HARNESS (ACCELERATOR PEDAL POSITION SENSOR - ECM)
DTC P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
DESCRIPTION
- УКАЗАНИЕ:
- This is the repair procedure for the accelerator pedal position sensor.
- This electrical throttle system does not use a throttle cable.
- This accelerator pedal position sensor is a non-contact type.
In the accelerator pedal position sensor, the voltage applied to pedal terminals VPA and VPA2 of the ECM changes between 0 V and 5 V in proportion to the opening angle of the accelerator pedal. The VPA is a signal to indicate the actual accelerator pedal opening angle which is used for the engine control, and the VPA2 is a signal to indicate the information about the opening angle which is used for detecting malfunctions. The ECM determines the current opening angle of the accelerator pedal using signals from terminals VPA and VPA2, and the ECM controls the throttle motor based on these signals.
| DTC No. | DTC Detection Condition | Trouble Area |
| P2121 | Condition (a) continues for 2 seconds: (a) Difference between VPA1 and VPA2 exceeds the threshold (1 trip detection logic) |
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WIRING DIAGRAM
Refer to DTC P2121 (see page RAV4_ACA30 RM0000018WX004X_02.html).INSPECTION PROCEDURE
- ПРИМЕЧАНИЕ:
- After replacing the ECM, the new ECM needs registration (see page RAV4_ACA30 RM000000TJ4007X.html) and initialization (see page RAV4_ACA30 RM000000TIN007X.html).
| 1.READ VALUE OF ACCELERATOR PEDAL POSITION SENSOR |
Connect the intelligent tester to the DLC3.
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Turn the ignition switch on (IG) and turn the tester ON.
Enter the following menus: Powertrain / Engine and ECT / Data List / Accel Position 1 and Accel Position 2.
Read the values.
- Standard voltage:
Accelerator Pedal Accel Position 1 Accel Position 2 Released 0.6 to 1.0 V 1.4 to 1.8 V Depressed 3.4 to 3.8 V 4.2 to 4.6 V
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| NG | |
| 2.CHECK WIRE HARNESS (ACCELERATOR PEDAL POSITION SENSOR - ECM) |
Disconnect the A6 accelerator pedal position sensor connector.
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Disconnect the A12 ECM connector.
Measure the resistance of the wire harness side connectors.
- Standard resistance:
Tester Connection Specified Condition A6-1 (VCP2) - A12-56 (VCP2) Below 1 Ω A6-2 (EPA2) - A12-58 (EPA2) Below 1 Ω A6-3 (VPA2) - A12-54 (VPA2) Below 1 Ω A6-4 (VCPA) - A12-55 (VCPA) Below 1 Ω A6-5 (EPA) - A12-57 (EPA) Below 1 Ω A6-6 (VPA) - A12-53 (VPA) Below 1 Ω A6-1 (VCP2) or A12-56 (VCP2) - Body ground 10 kΩ or higher A6-2 (EPA2) or A12-58 (EPA2) - Body ground 10 kΩ or higher A6-3 (VPA2) or A12-54 (VPA2) - Body ground 10 kΩ or higher A6-4 (VCPA) or A12-55 (VCPA) - Body ground 10 kΩ or higher A6-5 (EPA) or A12-57 (EPA) - Body ground 10 kΩ or higher A6-6 (VPA) or A12-53 (VPA) - Body ground 10 kΩ or higher
Reconnect the accelerator pedal position sensor connector.
Reconnect the ECM connector.
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| OK | ||
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