Toyota Corolla Repair Manual: Under hood
General maintenance
1. General notes
- maintenance requirements vary depending on the country.
- Check the maintenance schedule in the owner’s manual supplement.
- Following the maintenance schedule is mandatory.
- Determine the appropriate time to service the vehicle using either miles
driven or time (month) elapsed,
whichever reaches the specification first.
- Maintain similar intervals between periodic maintenance unless noted.
- Failng to check each vehicle part could lead to poor engine performance
and increase exhaust emissions.
2. Windshield washer fluid
- check that there is sufficient fluid in the tank.
3. Engine coolant level
- check that the coolant level is between the ”full” and ”low” lines
on the see–through reservoir.
4. Radiator and hoses
- check that the front of the radiator is clean and free of leaves,
dirt and bugs.
- check the hoses for cracks, kinks, rotting loose connections.
5. Battery electrolyte level
- by rocking the vehicle, check that the electrolyte level of all
the battery cells is between the upper and
lower lines on the case.
6. Brake fluid level
- check that the brake fluid levels are near the upper level line on
the see–through reservoirs.
7. Engine drive belt
- check the drive belt for fraying, cracks, wear and oiliness.
8. Engine oil level
- check if the level of engine oil is between ”f” and ”l” on the
dipstick with the engine turned off.
9. Power steering fluid level
- check the level on the dipstick.
- the level should be in the ”hot” or ”cold” range depending on the
fluid temperature.
10. Automatic transmission fluid level
- park the vehicle on a level surface.
- with the engine idling and the parking brake applied, shift the
selector into all the positions from ”p”
to ”l”. Then shift to the ”p” position.
- ) pull out the dipstick and wipe off the fluid with a clean shop rag.
Re–insert the dipstick and check that
the fluid level is in the ”hot” range.
- perform this check with the fluid at the normal driving
temperature:70 to 80°c (158 to 176°f).
Hint
:
after extended driving under harsh conditions (high speeds, hot weather, heavy
traffic or pulling a trailer),
let the engine cool down for approximately 30 minutes before checking the fluid
level.
11. Exhaust system
- check for unusual exhaust sounds or abnormal exhaust fumes. Locate
the cause and correct it.
General maintenance
Performing these maintenance checks on the vehicle in the owner’s
responsibility. The owner may
perform the maintenance or take the vehicle to a service center.
Check the pa ...
On–vehicle inspection
Hint:
inspect these items on a cooled down engine.
1. Inspect drive belt
2. Replace spark plugs
3. Inspect air filter
Remove the air filter.
visually check ...
Other materials:
Inspection procedure
Hint:
hand–held tester only:
narrowing down the trouble area is possible by performing ”a/f control” active
test (heated oxygen
sensor or other trouble areas can be distinguished).
Perform active test using hand–held tester (a/f control).
Hint:
”a/f control” is the active test which cha ...
On–vehicle inspection
1. Check fuel pump operation
Connect the hand–held tester to the dlc3.
turn the ignition switch on and hand–held tester main
switch on.
Notice:
do not start the engine.
select the active test mode on the hand–held tester.
please refer to the hand–held tester ope ...
Inspection procedure
1 Check door lock
2 Check wire harness (tvip ecu door lock)
Disconnect the tvip ecu and door lock connectors.
check the continuity between the terminals of the tvip
ecu and door lock connectors, as shown in the illustration
and table.
Standard:
3 Check wire harness ...