Toyota Corolla (E120): On–vehicle inspection
1. Inspect brake booster

- Airtightness check.
- Start the engine and stop it after 1 or 2 minutes. Depress
the brake pedal several times slowly.
Hint
: if the pedal goes down farthest at the 1st time, but gradually rises after the 2nd or 3rd time, the booster is airtight.
- Depress the brake pedal while the engine is running,
and stop the engine with the pedal depressed.
Hint
: if there is no change in the pedal reserve distance after holding the pedal for 30 seconds, the booster is airtight.

- Operating check.
- Depress the brake pedal several times with the ignition switch off and check that there is no change in the pedal reserve distance.
- Depress the brake pedal and start the engine.
Hint
: if the pedal goes down slightly, operation is normal.
2. Inspect vacuum check valve
- check vacuum check valve.
- Slide the clip and disconnect the vacuum hose.
- Remove the vacuum check valve.

- Check that there is ventilation from the booster to engine, and no ventilation from the engine to the booster.
- If any fault is found, replace the vacuum check valve.
Other materials:
Circuit description
The airbag sensor front lh circuit consists of the airbag sensor assy center
and airbag sensor front lh.
Dtc b1158/b1159/16 is recorded when malfunction is detected in the airbag sensor
front lh circuit.
Wiring diagram
...
Vehicle information
This screen can be used to display the fuel consumption.
“Trip Information” or “Past Record” screen
Press “CAR” to display the “Trip Information” or “Past Record” screen.
Fuel consumption
■ Trip information
If the “Trip Information” screen does not appear, select ...
Fog light switch
The fog lights secure excellent visibility in difficult driving conditions,
such as in rain and fog.
1 Turns the front fog lights off
2 Turns the front fog lights on
*1: For U.S.A.
*2: For Canada
■Fog lights can be used when
The headlights are on in low beam. ...


