Component Inspection

Check ECM
1. Ignition "ON" & Engine "OFF".
2. Perform TEACHING PROCEDURES .
3. Is the Key teaching completed?
  YES
  
  Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  
  NO
  
  Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

NOTE:

Don't forget to prepare for the PIN of the vehicle before removing ECM from the vehicle.
Remember that substituting with a known-good ECM should be followed "The things to remember before repair (1)" in "Reference Data in General Information".
(In case of faulty ECM, it has to be replaced with "VIRGIN" or" NEUTRAL" ECM.)
Ensure that the correct PIN is entered when replacing a new ECM.