DI184 EINE (JZGTE) DI4SR01 DTC P010 Throttle/Pedal Position Sensor/Switch A Circuit Malfunction CIRCUIT DESCRIPTI Throttle Position Sensor VCC VTA1 IDL1 E + FI6480 The throttle position sensor is mounted in the throttle body and detects the throttle valve opening angle. When the throttle valve is fully closed, the IDL1 contacts in the throttle position sensor are on, so the voltage at the terminal IDL1 of the becomes 0 V. At this time, a voltage of approximately 0.7 V is applied to terminal VTA1 of the. When the throttle valve is opened, the IDL1 contacts go off and thus the power source voltage of approximately 1 V in the is applied to the terminal IDL1 of the. The voltage applied to the terminal VTA1 of the increases in proportion to the opening angle of the throttle valve and becomes approximately 3. 4.9 V when the throttle valve is fully opened. The judges the vehicle driving conditions from these signals input from terminals VTA1 and IDL1, and uses them as one of the conditions for deciding the airfuel ratio correction, power increases correction and fuelcut control etc. DTC No. DTC Detecting Condition Trouble Area P010 Condition (a) or (b) conditions: (a) VTA < 0.5 V, and closed throttle position switch is OFF (b) VTA > 4.9 V Open or short in throttle position sensor circuit Throttle position sensor HINT: If there is open circuit in IDL line, DTC P010 does not indicate. After confirming DTC P010 use the OD II scan tool or TOYOTA handheld tester to confirm the throttle valve opening percentage and closed throttle position switch condition. Throttle valve opening position expressed as percentage Throttle valve fully closed Throttle valve fully open 0 % 0 % Trouble Area VC line open VTA1 line open or short Approx. 100 % Approx. 100 % E line open 41
EINE (JZGTE) DI185 WIRI DIAGRAM Throttle Position Sensor 1 LR 41 VCC 3 4 Y R W 43 64 65 VTA1 IDL1 E E1 + Sub Throttle Position Sensor 4 LR + 3 1 YL GRR W 4 VTA 63 IDL E1 FI6879 413
DI186 EINE (JZGTE) INSPECTI PROCEDURE HINT: If DTC P0110, P0115 and P010 are output simultaneously, E (sensor ground) may be open. 1 Connect the OD II scan tool or TOYOTA handheld tester and read the throttle valve opening percentage. (a) Connect the OD II scan tool or TOYOTA handheld tester to the DLC 3. (b) Turn ignition switch and push the OD II scan tool or TOYOTA handheld tester main switch. Read the throttle valve opening percentage. : Throttle valve Throttle valve opening position expressed as percentage Fully open Approx. 70 % Fully closed Approx. 10 % FI705 Check for intermittent problems (See page DI147). Check voltage between terminal 1 of wire harness side connector and body ground. 1(+) A00694 (a) Disconnect the throttle position sensor connector. (b) Turn ignition switch. Measure voltage between terminal 1 of wire harness side connector and body ground. : Voltage: 4.5 5.5 V Go to step 5. 414
EINE (JZGTE) DI187 3 Check throttle position sensor. 4 1 P4693 Disconnect the throttle position sensor connector. Measure resistance between terminals 1, and 4 of throttle position sensor. : Terminals Throttle valve Resistance 1 4 3.1 7. kω 4 Fully closed Fully open 0.34 6.3 kω.4 11. kω Replace throttle position sensor (See page SF44). 4 Check voltage between terminals VTA1 and E of. Check Harness A 65, 43 (a) Connect Check Harness A (See page DI164). (b) Turn ignition switch. Measure voltage between terminals VTA1 and E of. : Throttle Valve Voltage E () VTA1 (+) A00695 Fully closed Fully open 0.3 0.8 V 3. 4.9 V Check for open and short in harness and connector between and throttle position sensor (VTA line) (See page IN8). Check and replace (See page IN8). 415
DI188 EINE (JZGTE) 5 Check voltage between terminals VCC and E of. Check Harness A E () 65, 41 VCC (+) A00696 (a) Connect Check Harness A (See page DI164). (b) Turn ignition switch. Measure voltage between terminals VCC and E of connector. : Voltage 4.5 5.5 V Check and replace (See page IN8). Check for open in harness and connector between and sensor (VC line) (See page IN8). 416