Toyota Corolla Repair Manual: Pre–check
1. Pre–check
- Check that the cruise control actuator assy, acceleration wire,
accelerator auto drive cable assy, and
link assy are installed correctly and that the wire and link are securely
connected.
- check that the operating movement of the acceleration pedal, cruise
control actuator assy, acceleration
wire, accelerator auto drive cable assy and link is smooth.
- adjust the acceleration auto drive cable assy and link system not
to allow any play or excessive tension.
- check that the cruise control ecu assy, cruise control actuator
assy, cruise control main switch assy
and connectors of each cancel switch are connected securely.
- when turning on the main switch of the cruise control main switch
assy by pressing the button with
the ignition switch to on, check that the cruise main indicator light in the
accessory meter assy lights
up.
2. Diagnosis system
- Check the indicator.
- Turn the ignition switch to on.
- Check that the cruise main indicator light comes
on when the cruise control main switch button is
turned on, and that the indicator light goes off when
the main switch button is turned off.
Hint
: if the indicator check result is not normal, proceed to
troubleshooting for the combination meter
section.
- Check the dtc using diagnosis check wire.
- Turn the ignition switch to on.
- Using sst, connect terminals tc and cg of dlc3.
Sst 09843–18040
- read the dtc on the cruise main indicator light.
Hint
: if the dtc is not output, inspect the diagnosis circuit .
As an example, the blinking patterns for codes are shown in the
illustration; normal, 11 and 21.
3. Using hand–held tester
- Hook up the hand–held tester to the dlc3.
- monitor the ecu data by following the prompts on the tester screen.
Hint
:
the hand–held tester has a ”snapshot” function which records the monitored data.
Please refer to the hand–held tester operator’s manual for further details.
4. Dtc clearance (erase mode)
Hint
:
during in the erase mode, diag detection does not work.
- Drive at about 15 km/h or below.
- using sst, connect terminals tc and cg of dlc3.
Sst 09843–18040
- pull the cruise control main switch assy to cancel.
- on the above mentioned condition, press on the cruise
control main switch button 5 times within 3 seconds.
5. Problem symptom confirmation
(road test)
- Inspect the set switch.
- Press the cruise control main switch button to on.
- Drive at a desired speed (40 km/h (25 mph) or higher).
- Push down the cruise control main switch assy to
the set/coast.
- After releasing the switch, check that the vehicle
cruises at the desired speed.
- Inspect the accel switch.
- Press the cruise control main switch button to on.
- Drive at a desired speed (40 km/h (25 mph) or higher).
- Check that the vehicle speed is increases while the
cruise control main switch assy is pull up to res/
acc, and that the vehicle cruises at the set speed
when the switch is released.
- Momentarily press the cruise control main switch
assy upward, to the res/acc and then immediately
release it. Check that the vehicle speed increases
by about 1.5 Km/h (tap–up function).
- Inspect the coast switch.
- Press the cruise control main switch button to on.
- Drive at a desired speed (40 km/h (25 mph) or higher).
- Check that the vehicle speed is decreases while the
cruise control main switch assy is push down to
set/coast, and the vehicle cruises at the set
speed when the switch is released.
- Momentarily push the cruise control main switch
assy downward to set/coast, and then immediately
release it. Check that the vehicle speed decreases
by about 1.5 Km/h (tap–down function).
- Inspect the cancel switch.
- Press the cruise control main switch button to on.
- Drive at a desired speed (40 km/h (25 mph) or higher).
- When operating one of the followings, check that
the cruise control system is cancelled and that the
normal driving mode is reset.
- Depress the brake pedal.
- Depress the clutch pedal (m/t).
- Shift to except d position (a/t).
- Press the cruise control main switch button to
off.
- Pull the cruise control main switch assy to
cancel.
- Inspect the resume switch.
- Press the cruise control main switch button to on.
- Drive at a desired speed (40 km/h (25 mph) or higher).
- When operating one of the followings, check that
the cruise control system is cancelled and that the
normal driving mode is reset.
- Depress the brake pedal.
- Depress the clutch pedal (m/t).
- Shift to except d position (a/t).
- Pull the cruise control main switch assy to
cancel.
- After the cruise control main switch assy is pull up
to res/acc at the driving speed of more than 40
km/h (25 mph), check that the vehicle restores the
speed before the cancellation.
6. Input signal check
Hint
:
- Keep the cruise control main switch assy to set/coast
or res/acc position and hold it down or hold it up.
- press the cruise control main switch button to on.
- check that the cruise main indicator light blinks twice
or 3 times repeatedly after 3 seconds.
- turn the set/coast or res/acc switch to off.
- operate each switch as listed in the table below.
- read the blinking pattern of the cruise main indicator
light.
- after performing the check, turn the cruise control main
switch button to off.
Hint
:
when 2 or more signals are input to the cruise control ecu
assy, the lowest numbered code will be displayed first.
7. Auto cancel function
- If a malfunction occurs in the no.1 Vehicle speed sensors
or actuator, etc. During cruise control driving, the ecu actuates
auto cancel of the cruise control and turns on
and off the cruise main indicator light to inform the
driver of a malfunction. At the same time, the malfunction
is stored in memory as a diagnostic trouble code.
1 Vehicle brought to workshop
2 Customer problem analysis
3 Check and clear dtc
4 Problem symptom confirmation
5 Symptom simulation
6 Dtc check
7 Dtc chart
8 Problem symptoms ta ...
Diagnostic trouble code chart
Location
...
Other materials:
Initialization
Select “Initialize” using .
● Initializing the sound settings
Select “Sound setting” using and press
(YES).
For details about sound settings: ● Initializing the device information
Select “Car Device Info” using and
press (YES).
Automatic connection of a portable device, the ...
Steering wheel audio switches
Some audio features can be controlled using the switches on the steering wheel.
Operation may differ depending on the type of audio system or navigation system.
For details, refer to the manual provided with the audio system or navigation system.
Operating the audio system using the steering whe ...
Things you should know
■ If you notice any symptoms
If you notice any of the following symptoms, refer to the likely cause and the
solution, and re-check.
If the symptom is not resolved by the solution, have the vehicle inspected by
your Toyota dealer.
CAUTION
■When using the rear view monitor system ...