Toyota Corolla (E120): Overhaul
1. Remove bench type rear seat cushion assy

- Disengage the 2 clamps, and then remove the seat cushion.
2. Remove bench type rear seat back assy
- remove the headrests.
- remove the 2 bolts and seat back.
3. Remove bench type rear seat cushion cover
- remove the hog rings and seat cushion cover.
4. Remove bench type rear seat back cover
- remove the headrest supports.
- remove the hog rings and seat back cover.
5. Install bench type rear seat back cover
- cover the top of the seat back pad with the seat back cover.
- install the headrest supports.
- using hog ring pliers, fully install the seat back cover with new hog rings.
Notice
:
- be careful not to damage the cover.
- Be careful to prevent the cover wrinkles as little as possible.
6. Install bench type rear seat cushion cover
- using hog ring pliers, install the seat cushion cover with new hog rings.
Notice
:
- be careful not to damage the cover.
- Be careful to prevent the cover wrinkles as little as possible.
7. Install bench type rear seat back assy
- hook the seat back to the body.
- install the 2 bolts.
Torque: 7.8 Nvm (80 kgfvcm, 69 in.Vlbf)
8. Install bench type rear seat cushion assy
- insert the seat cushion under the seat back.
- engage the 2 clamps.
Other materials:
Inspection procedure
1 Check tvip ecu
Check that the operation of the tvip function is normal.
Hint:
with this inspection, the tvip ecu cpu can be diagnosed if it works normally or
not.
2 Check wire harness (tvip ecu integration relay)
Disconnect the tvip ecu and integration relay connectors.
ch ...
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.
...
On–vehicle inspection
1. Check cooling fan operation with low temperature (below 83 c (181 f))
Turn the ignition switch on.
check that the cooling fan stops.
Hint:
if not, check the cooling fan relay and water temperature sensor, and check for
separated connector or severed
wire between the cooling fan ...


