Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Clutch switch circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Input signal check

- See the input signal check on page 05–745.
- check the indicator light when the clutch pedal is depressed.
Ok: the indicator light goes off when the clutch pedal is depressed.


2 Inspect terminal voltage(d)

- Turn the ignition switch to on.
- measure the voltage between terminal 4 (d) of the cruise
control ecu assy connector and the body ground when
the clutch pedal is depressed and released.
Ok:


3 Inspect clutch switch assy

- Disconnect the clutch switch assy connector.
- check continuity between terminal 1 and 2 of clutch
switch assy.
Ok:



4 Check harness and connector(between cruise control ecu assy and gauge fuse)
- Check for open and short circuit in harness and connector between cruise control ecu assy and gauge fuse


Check and replace cruise control ecu assy
Other materials:
Moon roof
Use the overhead switches to open and close the moon roof and tilt it up and
down.
■ Opening and closing
1 Opens the moon roof* The moon roof stops slightly before the fully open position
to reduce wind noise.
Press the switch again to fully open the moon roof.
2 Closes the moon roof*
...
Warning light and warning buzzer list
*1: Parking brake engaged warning buzzer:
*2: Open door warning buzzer:
*3: Vehicles with a drive monitor display
*4: Vehicles with a multi-information display
*5: Driver’s seat belt buzzer:
Vehicles without a smart key system: The driver’s seat belt buzzer sounds to alert
the d ...
Inspection procedure
1 Check tvip ecu
Check that the operation of the tvip function is normal.
Hint:
with this inspection, the tvip ecu cpu can be diagnosed if it works normally or
not.
2 Check wire harness (tvip ecu integration relay)
Disconnect the tvip ecu and integration relay connectors.
ch ...


