2.
After connecting Scantool, Monitor the DTCs and CURRENT DATA to check key status.
Ignition "ON" & Engine "OFF"
After connecting Scantool, Monitor the DTCs and CURRENT DATA to check key status.
Are both Key and ECU status learnt ?
YES
Fault is intermittent caused by poor contact in the ICU and/or the engine ECU connector or was repaired and ICU memory was not cleared. 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
If ECU status is not yet checked" is displayed, check engine ECU and then go to "Verification of Vehicle Repair" procedure.
Be sure that P1677 can be displayed, when engine ECU has a different VIN DATA(Engine ECU is replaced by another vehicle’s ECU) with ICU.
