Toyota Corolla (E120): Inspection procedure

1 Inspect parking brake switch circuit

  1. Check for open and short circuit in parking brake switch circuit

2 Inspect brake fluid level warning switch circuit

2 Inspect brake fluid level warning switch circuit

  1. Check the brake fluid level in reservoir.
  2.  check for open and shot circuit in brake fluid level warning switch circuit

3 Check dtc once more

3 Check dtc once more

  1. Check for open and short circuit in harness and connector between vacuum warning switch and skid control ecu

4 Inspect combination meter assembly(brake warning light circuit)

4 Inspect combination meter assembly(brake warning light circuit)

  1. Check for open and short circuit in combination meter

5 Check harness and connector(brake actuator – combination

5 Check harness and connector(brake actuator – combination meter)

  1. Check for open and short circuit in harness and connector between brake actuator and combination meter

Check and replace brake actuator assy

Check and replace brake actuator assy

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    Other materials:

    Replacement
    Hint: components:  1. Remove front wheel 2. Remove front axle hub lh nut  sst 09930–00010 3. Separate front stabilizer link assy lh 4. Separate speed sensor front lh (w/ abs) 5. Separate front disc brake caliper assy lh Remove the 2 bolts, separate the brake caliper assy ...

    Circuit description
    Refer to dtc p0120 Dtc no. Dtc detection condition Trouble area P0121 The following condition is met 4 times. After the vehicle speed has exceeded 19 mph (30 km/h) once, the throttle position sensor output value is out of normal range when the throttle ...

    Parking brake
    The parking brake can be set or released automatically or manually. In automatic mode, the parking brake can be set or released automatically according to shift lever operation. Also, even in automatic mode, the parking brake can be set or released manually. Operating instructions ■ Using the ma ...