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1.

Check DTC on SMK side with scantool.

2.

Check that there is any DTC on SMK side or ESCL side.

3.

Inspect DTC related ESCL first if there is any DTC on the SMK side according to DTC troubleshooting guide.

4.

After inspection and repair, erase DTC related ESCL.

5.

Erase DTC B1971 ESCL failure on SMK unit side.

6.

Has the DTC gone after erasing DTC with scantool ?

▶ Check poor connection between harness connector and ESCL, SMK unit :

Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.

▶ Go to check current data.

▶ Go to check current data as follows if there is DTC B1971 ESCL failure.

7.

Select current data parameters related SMK unit with scantool.

8.

Monitor "ESCL ENABLE" and "SMK State" are normal.

Specification :

Fig.1) ESCL Lock

Fig.2) ESCL Unlock

9.

Are all parameters related ESCL funtioning normally ?

▶ Check poor connection between harness connector and ESCL, SMK unit :

Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.

▶ Check harness and system related ESCL if "SMK STATE" is shown ESCL failure.

▶ If there is any parameter on the system or harness displayed abnormal, check harness and system.

▶ Go to "Inspection & Repair" procedure.