B2789

DOOR LOCK: SMART KEY SYSTEM: B2789: No Response from ID BOX
B2789 - No Response from ID BOX

DESCRIPTION





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. RECONFIRM DTC

(a) Clear the DTC and repeat the procedure to re-check it Door Lock - Smart Key System.

OK:

DTC is not output.

OK -- END (SYSTEM IS NORMAL)
NG -- Continue to next step.

2. CHECK WIRE HARNESS (CERTIFICATION ECU - ID CODE BOX)

(a) Disconnect the D39 ECU connector.





(b) Disconnect the D29 ECU connector.





(c) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. REPLACE CERTIFICATION ECU (CHECK OPERATION OF CERTIFICATION ECU)

(a) Replace the certification ECU.

(b) Clear the DTC and repeat the procedure to re-check it Door Lock - Smart Key System.

OK:

DTC is not output.

OK -- END (CERTIFICATION ECU IS DEFECTIVE)

NG -- REPLACE ID CODE BOX