DESCRIPTION The electronic throttle control system is composed of the throttle actuator, throttle position sensor, accelerator pedal position sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. The throttle position sensor detects the
ON-VEHICLE INSPECTION PROCEDURE
1. INSPECT BRAKE BOOSTER ASSEMBLY (a) Airtightness check
(1) Start the engine and stop it after 1 or 2 minutes. Slowly depress the brake pedal several times.
If the brake pedal can be depressed nearly to the floor the first time, but on the 2nd and 3rd time