Toyota Corolla (E120) 2002–2008 Repair Manual / Lubrication / Lubrication system
Toyota Corolla (E120): Lubrication system
On–vehicle inspection
1. Check engine oil level
- after warming up the engine and then 5 minutes after the engine stops, oil level should be between the ”l” and ”f” marks on the oil level gage.
If low, check for leakage and add oil up to the ”f” mark.
Notice
: do not fill with engine oil above the ”f” mark.
2. Check engine oil quality

- Check the oil for deterioration, entry of water, discoloring or thinning.
If the quality is visibly poor, replace the oil.
Oil grade: use api grade sl ”energy–conserving”, or ilsac multigrade engine oil.
Sae 5w–30 is the best choice for good fuel economy, and good starting in cold weather.
If sae 5w–30 is not available, sae 10w–30 may be used.
However, it should be replaced with sae 5w–30 at the next oil replacement.
3. Inspect oil pressure
- disconnect the oil pressure switch connector.

- Using a 24 mm deep socket wrench, remove the oil pressure switch.

- Install the oil pressure gauge.
- warm up the engine.
- inspect the oil pressure.
Oil pressure:


- Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
part no. 08833–00080, Three bond 1344, loctite 242 or equivalent - using a 24 mm deep socket wrench, install the oil pressure
switch.
Torque: 15 nvm (153 Kgf·cm, 11 ft·lbf)
- connect the oil pressure switch connector.
- check for the engine oil leaks.
Other materials:
Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure
sensor malfunctions.
P0451
The ecm senses pressure in the fuel tank using the vapor pressure sensor. The
ecm supplies the sensor
with a regulated 5 v reference–voltage and the sensor returns a signal voltage
betwee ...
Data list/active test
1. Data list
Hint:
according to the data list displayed by the obd ii scan tool or hand–held
tester, you can read the value
of the switch, sensor, actuator and so on without parts removal. Reading the
data list as the first step of
troubleshooting is one method to shorten labor time.
W ...
Inspection procedure
1 Check p squib circuit(airbag sensor assy center – instrument
panel passenger airbag assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connector between the airbag sensor
assy center and the instrument panel ...


