B2786

NETWORKING: LIN COMMUNICATION SYSTEM: B2786: No Response from Steering Lock ECU
B2786 - No Response from Steering Lock ECU

DESCRIPTION

This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and the steering lock ECU (steering lock actuator assembly) stops for more than 10 seconds.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* If the certification ECU (smart key ECU assembly) is replaced, register the keys Engine Immobilizer System.
* If the steering lock ECU (steering lock actuator assembly) is replaced, register the ECU code Engine Immobilizer System.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU - BATTERY AND BODY GROUND)

(a) Disconnect the J29 connector.





(b) Measure the resistance and voltage according to the value(s) in the table below.

Standard Resistance:





Standard Voltage:





Text in Illustration





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

2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - STEERING LOCK ECU)

(a) Disconnect the P33 connector.





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

Standard Resistance:





Text in Illustration





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

3. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

(a) Replace the steering lock ECU (steering lock actuator assembly) Removal.

NEXT -- Continue to next step.

4. CHECK DTC OUTPUT

(a) Clear the DTC LIN Communication System.

(b) Recheck for DTCs.

OK:

DTC B2786 is not output.

NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal

OK -- END (STEERING LOCK ECU WAS DEFECTIVE)