Engine Control Module: Service and Repair

ECM (1ZZ-FE/2ZZ-GE)
REPLACEMENT

1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. REMOVE GLOVE COMPARTMENT DOOR ASSY
3. REMOVE ECM







a. Remove the 2 clips using a clip remover. Then open the cover.







b. Disconnect the 4 ECM connectors.
c. Remove the wire harness from the wire harness clamp.







d. Remove the 2 bolts.
e. Unfasten the claw and clip, and then remove the ECM.

4. REMOVE ECM COVER







a. Take the 2 double-sided adhesive tapes off the ECM, then remove the ECM cover.


5. REMOVE ECM BRACKET NO.2







a. Remove the 2 screws, then remove the ECM bracket No.2.

6. REMOVE ECM BRACKET NO.1







a. Remove the 2 screws, then remove the ECM bracket No.1.

7. REMOVE ECM BRACKET NO.3 (DELCO MADE, DENSO MADE (FOR 2ZZ-GE ENGINE TYPE))







a. Remove the 2 screws, then remove the ECM bracket No.3.


8. INSTALL ECM BRACKET NO.3 (DELCO MADE, DENSO MADE (FOR 2ZZ-GE ENGINE TYPE))


Torque:.....................3.2 N.m (33 kgf.cm, 28 in.lbf)

9. INSTALL ECM BRACKET NO.1

Torque:.....................3.2 N.m (33 kgf.cm, 28 in.lbf)

10. INSTALL ECM BRACKET NO.2

Torque:.....................3.2 N.m (33 kgf.cm, 28 in.lbf)


11. INSTALL ECM COVER







a. Install a new ECM cover to the ECM as shown in the illustration.




12. INSTALL ECM

Torque:.....................3.0 N.m (31 kgf.cm, 27 in.lbf)

13. INSTALL GLOVE COMPARTMENT DOOR ASSY

14. CONNECT BATTERY NEGATIVE TERMINAL

Torque:.....................5.4 N.m (55 kgf.cm, 48 in.lbf)

15. RESET MEMORY (A/T TRANSAXLE)

CAUTION: Perform the RESET MEMORY (AT initialization) when replacing the ECM1 engine assembly or automatic transaxie assembly.

a. The hand-held tester only.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Perform the RESET MEMORY procedure from the ENGINE menu.

CAUTION: After performing the RESET MEMORY, be sure to perform the ROAD TEST.