Toyota Corolla Repair Manual: Ecm (1zz–fe)
Replacement
1. Disconnect battery negative terminal
2. Remove glove compartment door assy
3. Remove ecm
- Remove the 2 clips using a clip remover. Then, open the cover.
- Disconnect the 4 ecm connectors.
- remove the wire harness from the wire harness clamp.
- Remove the 2 bolts.
- unfasten the claw and clip, then remove the ecm.
4. Remove ecm cover
- Take the 2 double–sided adhesive tapes off the ecm, then remove the ecm cover.
5. Remove ecm bracket no.2 (Denso made)
- Remove the 2 screws, then remove the ecm bracket no.
2.
6. Remove ecm bracket no.1
- Remove the 2 screws, then remove the ecm bracket no.
7. Remove ecm bracket no.3 (Delco made)
- Remove the 2 screws, then remove the ecm bracket no.
8. Install ecm bracket no.3 (Delco made) torque: 3.2 Nvm (33 kgfvcm, 28 in.Vlbf)
9. Install ecm bracket no.1 Torque: 3.2 Nvm (33 kgfvcm, 28 in.Vlbf)
10. Install ecm bracket no.2 (Denso made) torque: 3.2 Nvm (33 kgfvcm, 28 in.Vlbf)
11. Install ecm cover
- Install a new ecm cover to the ecm as shown in the illustration.
12. Install ecm torque: 3.0 Nvm (31 kgfvcm, 27 in.Vlbf)
13. Install glove compartment door assy
14. Connect battery negative terminal torque: 5.4 Nvm (55 kgfvcm, 48 in.Vlbf)
15. Reset memory (a/t transaxle)
Caution
: perform the reset memory (at initialization) when replacing the ecm, engine assembly or automatic transaxle assembly.
- The hand–held tester only.
- Connect the hand–held tester to the dlc3.
- Turn the ignition switch on.
- Perform the reset memory procedure from the engine menu.
Caution
: after performing the reset memory, be sure to perform the road test as described earlier.
Throttle body assy
Components
Removal & installation and disassembly & reassembly
1. Drain coolant
2. Remove cylinder head cover no.2
Remove 2 nuts, 2clips and the cylinder head cover no. 2.
3. R ...
Fuel
...
Other materials:
Circuit description
The srs warning light is located on the combination meter.
When the srs is normal, the srs warning light lights up for approx. 6 Seconds
after the ignition switch is
turned from the lock position to on position, and then turns off automatically.
If there is a malfunction is the srs, the srs ...
Inspection procedure
1 Check wire harness(airbag sensor assy center – front seat inner
belt assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat inner belt assy (lh). ...
On–vehicle inspection
1. Inspection throttle body idle speed control valve assy
Notice:
it is impossible to check the resister value and the operation
of isc valve by itself, because the isc valve
has an ic circuit inside it, which transforms the duty
signal from the ecm to the derive signal.
After check ...