Toyota Corolla (E120): Inspection
1. Thermostat
Hint
: the thermostat is numbered with the valve opening temperature.
- Immerse the thermostat in water and gradually heat the water.
- check the valve opening temperature.
Valve opening temperature: 80 to 84 c (176 to 183 f)
Hint
: if the valve opening temperature is not as specified, replace the thermostat.
- Check the valve lift.
Valve lift: 10 mm (0.39 In.) Or more at 95 c (203 f)
Hint
: if the valve lift is not as specified, replace the thermostat.
- check that the valve is fully closed when the thermostat is at low temperatures (below 77 c (171 f)).
Hint: if not closed, replace the thermostat.
2. Radiator cap sub–assy
Notice
:
- if the radiator cap has contaminations, always rinse it with water.
- Before using a radiator cap tester, wet the relief valve and pressure valve with engine coolant or water.
- When performing step (a) and (b) below, keep the tester at an angle of over 30 above the horizontal.
- Using a radiator cap tester, slowly pump the tester and
check that air is coming from the vacuum valve.
Pump speed: 1 push / 3 seconds or more
Notice
: push the pump at a constant speed. If air is not coming from the vacuum valve, replace the radiator cap.
- pump the tester and measure the relief valve opening
pressure.
Pump speed: 1 push within 1 second
Notice: the above pump speed is for the first pump only (in order to close the vacuum valve). After the first pump, the pump speed can be reduced. Standard opening pressure: 74 to 103 kpa (0.75 To 1.05 Kgf/cm2, 10.7 To 14.9 Psi) minimum opening pressure: 59 kpa (0.6 Kgf/cm2, 8.5 Psi)
Hint
: use the tester’s maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radiator cap.
Other materials:
Driving assist systems
To keep driving safety and
performance, the following
systems operate automatically
in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when operating
the vehicle.
Summary of the driving
assist systems
■ ABS ( ...
Circuit description
The side airbag sensor assy (lh) circuit consists of the diagnosis circuit
and lateral deceleration sensor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not
the srs must be activated,
and detects diagnosis system malfunction.
Dtc b1141/33 is recorded wh ...
Symptom confirmation and diagnostic trouble code
Hint:
the diagnostic system in corolla has various functions. The first
function is the diagnostic trouble
code (dtc) check, in which a malfunction in the signal circuits to the ecu
is stored in code form in
the ecu memory. Another function is the input signal check, which checks if
...