2.
Check VSS’s signal on scantool.
1)
Specification : Signal should vary between Low and High
IG KEY : ON , Engine : ON
Check VSS’s signal on scantool.
Specification : Signal should vary between Low and High
Is the VSS’s signal normal?
YES
VSS is OK.
Possibility of defective ECM. Temporarily test with a new ECM and check for proper operation.
If problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.
NO
Repair or replace it.Then go to "Verification of Vehicle Repair" procedure.
