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REMOVAL AND INSTALLATION
 
 
caution
  • If the ECM is replaced, another ECU related to KOS system should not be replaced together. If at least two ECUs needs to be replaced, replace one ECU and then register its ID with M.U.T.-III. Then proceed to the replacement of the other ECU.
  • If the ECM is replaced, perform the coding for it.
  • If the ECM is replaced, use scan tool (M.U.T.-III) to write the VIN (Refer to GROUP 00 - How to Perform Vehicle Identification Number Writing ).
  • After the ECM replacement, idling speed may be unstable because the MFI engine learning is not completed. To make it stable, let the system learn the idling (Refer to GROUP 00 - Precautions before Service, Learning Procedure for Idling in MFI Engine ).
Pre-removal and post-installation operation
  • Air Cleaner Assembly Removal and Installation (Refer to GROUP 15 - Air Cleaner ) .
<Except vehicles for Canada>
Removal steps
>>B<<•Initialization operation <only at installation>
1.ECM connector connection
2.ECM stay
3.ECM and ECM bracket assembly
4.ECM bracket
5.ECM

 
 
<Vehicles for Canada>
Removal steps
>>B<<•Initialization operation <only at installation>
<<A>>>>A<<1.Brake off bolt
2.Connector cover
3.ECM connector connection
4.ECM and ECM bracket assembly
<<A>>>>A<<5.Brake off bolt
6.ECM bracket
7.ECM
 
 
REMOVAL SERVICE POINT
 
 
<<A>> BREAK OFF BOLT REMOVAL <VEHICLES FOR CANADA>
1. <Recommended tool screw extractor set (MB992678) or equivalent>
(1) Drill in the break off bolt a hole deep enough for the tap to stand.
(2) Use the recommended tool screw extractor set (MB992678) or equivalent to remove the break off bolt.

2. <When using the flat-tipped screwdriver>
(1) Apply force towards the direction to loose the bolt by a flat-tipped screwdriver.
(2) Remove the break off bolt.
 
 
 
 
INSTALLATION SERVICE POINTS
 
 
>>A<< BREAK OFF BOLT INSTALLATION <VEHICLES FOR CANADA>
Tighten the break off bolt until its head is broken off.
 
 
>>B<< INITIALIZATION OPERATION
Turn the ignition switch to the "ON" position and then to "LOCK" (OFF) position and hold it for at least 10 seconds.