B2284

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): B2284: Brake Signal Malfunction
B2284 - Brake Signal Malfunction

DESCRIPTION

This DTC is output when: 1) the brake signal circuit between the power source control ECU and the stop light switch is malfunctioning; and 2) the BEAN information is inconsistent.

HINT
When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
Check the connector connection to the terminal to make sure that there is no abnormally such as a loose connection, deformations, etc.

PROCEDURE

1. CHECK MULTIPLEX COMMUNICATION SYSTEM

(a) Clear the DTC Smart Access System With Push-Button Start (for Start Function).

(b) Check for the multiplex communication system DTCs B1210, B1214 and B1215.

HINT
If the DTCs for the multiplex network communication system malfunction are output, inspect those DTCs first.

OK:

DTC is not output.

NG -- GO TO MULTIPLEX COMMUNICATION SYSTEM Multiplex Communication System
OK -- Continue to next step.

2. CHECK CAN COMMUNICATION SYSTEM

(a) Clear the DTC Smart Access System With Push-Button Start (for Start Function).

(b) Check for the CAN communication system DTCs How to Proceed With Troubleshooting.

HINT
If the DTCs for the CAN communication system malfunction are output, inspect those DTCs first.

OK:

DTC is not output.

NG -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
OK -- Continue to next step.

3. CHECK SFI SYSTEM

(a) Clear the DTC Smart Access System With Push-Button Start (for Start Function).

(b) Check for the SFI system DTCs.

HINT
If the DTCs for the SFI system malfunction are output, inspect those DTCs first.

OK:

DTC is not output.

NG -- GO TO SFI SYSTEM SFI System
OK -- Continue to next step.

4. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Read the Data List according to the displays on the Techstream.

Power Source Control





NG -- REPLACE ECM Removal
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (BATTERY - POWER SOURCE CONTROL ECU)

(a) Disconnect the J55 connector from power source control ECU.





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

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER SOURCE CONTROL ECU)

OK -- REPLACE POWER SOURCE CONTROL ECU