B2786

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B2786: No Response from Steering Lock ECU
B2786 - No Response from Steering Lock ECU

DESCRIPTION

This DTC is output when the certification ECU does not receive LIN communication from the steering lock ECU for 10 seconds.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Delete the DTC Reading and Clearing Diagnostic Trouble Codes.

(b) Recheck for DTC.

Result:





B -- NORMAL
A -- Continue to next step.

2. CHECK WIRE HARNESS (CERTIFICATION ECU - STEERING CONTROL ECU)





(a) Disconnect the U28 and K28 ECU connectors.

(b) Measure the resistance of the wire harness side connectors.

Standard resistance:





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

3. CHECK OPERATION OF CERTIFICATION ECU

(a) After replacing the certification ECU with a normal one, check for DTC.

Result:





B -- REPLACE CERTIFICATION ECU

A -- REPLACE STEERING LOCK ECU