Toyota Corolla (E120) 2002–2008 Repair Manual / Cooling / Thermostat
Toyota Corolla (E120): Thermostat
Replacement
1. Remove engine under cover rh
2. Drain coolant
3. Remove fan and generator v belt
4. Remove generator assy
- Disconnect the wire clamp from the wire clip on the rectifire end frame.
- remove the rubber cap and nut, and disconnect the alternator wire.
- disconnect the alternator connector.
- Remove the 2 bolts and alternator.
5. Remove water inlet
6. Remove thermostat
7. Install thermostat
- Install a new gasket to the thermostat.
- install the thermostat with the jiggle valve upward as shown in the illustration.
8. Install water inlet
Torque: 11 nvm (113 Kgf·cm, 8 ft·lbf)
9. Install generator assy
Torque:
12mm head 25 nvm (250 Kgf·cm, 18 ft·lbf)
14mm head 54 nvm (550 Kgf·cm, 39 in.Vlbf)
10. Add coolant
11. Check engine coolant leak
Other materials:
Terminals of ecu
Oscilloscope wave (*1)
Hint:
terminal: od – gnd
gauge set: 5 v / div, 50 ms / div
condition: during cruise control driving o/d switch on.
...
Inspection
1. Inspect front seat inner belt assy lh
When fastening the seat belt (buckle switch on).
Inspect the continuity and resistance between the
terminals.
Standard:
If the result is not as specified, replace the inner belt.
When releasing the seat belt (buckle switch ...
Pressing power switch does not start system
Wiring diagram
Inspection procedure
1 Inspect radio receiver assy(+b, acc, gnd)
Check that the continuity between terminals at each
condition, as shown in the chart.
Standard:
Check that the voltage between terminals at each condition,
as shown in the chart.
Standard:
...