1. REMOVE V-BANK COVER
2. INSPECT SYSTEM OPERATION
(a) Inspect the throttle control motor for operating sound.
If operation is not as specified, check the throttle control motor (See step 3), wiring and ECM.
(b) Inspect the accelerator pedal position sensor.
Standard throttle valve opening percentage: 60 % or more
If operation is not as specified, check that the accelerator pedal position sensor (DI-318 ), wiring and ECM.
If you have no TOYOTA hand-held tester or OBD II scan tool, measure the voltage between terminal VPA and E2 of the ECM connector.
(c) Inspect the air assist system.
Idle speed (Transmission in neutral): 700 +- 50 rpm
NOTICE: Perform inspection under the condition with no electrical load.
(d) After checking the above (b) to (d), perform the running test and check that there is no incongruity.
3. INSPECT THROTTLE CONTROL MOTOR
(a) Disconnect the throttle connector.
(b) Using an ohmmeter, measure the motor resistance between terminal M+ and M-.
Motor resistance: 0.3 - 100 W at 20C (68F)
If the resistance is not as specified, replace the throttle body.
(c) Reconnect the throttle body connector.
4. INSPECT THROTTLE POSITION SENSOR (DI-84 )
If necessary, replace the throttle body.
NOTICE: Be careful not to give a shock to the throttle body.
Be careful not to disassemble the throttle body.
5. REINSTALL V-BANK COVER