B2284

THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): B2284: Brake Signal Malfunction

DTC B2284 - Brake Signal Malfunction

DESCRIPTION

This DTC is stored when there is an inconsistency between the circuit between the main body ECU and stop light switch, and the CAN communication signal between the main body ECU and ECM.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH)
(a) Use the Data List to check if the stop light switch is functioning properly.

Main Body





Result





B -- REPLACE MAIN BODY ECU
A -- Continue to next step.
2. INSPECT FUSE (STOP)
(a) Remove the STOP fuse from the engine room relay block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE FUSE
OK -- Continue to next step.
3. INSPECT STOP LIGHT SWITCH





(a) Disconnect the A30 stop light switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE STOP LIGHT SWITCH
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - BATTERY AND MAIN BODY ECU)





(a) Disconnect the 2B main body ECU connector.
(b) Disconnect the A30 stop light switch connector.
(c) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:






Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU