Check ECM
IG "ON" & Engine "OFF"
Neutralize ECM and Register transponder key by scantool.
Pin code is requied to Neutralize ECM and to Register transponder key
Are Neutralizing and Registering completed normally ?
 | ▶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. |
 | ▶Substitute with a known-good transponder and perform key teaching procedure with scanner. ▶If the problem is corrected, replace transponder and then go to "Verification of Vehicle Repair" procedure. |
ECM substitued for old one must be in "Virgin" or "Neutral" status and Pin code is required to Neutralize ECM and to Register transponder key
