B2284

DTC B2284 Brake Signal Malfunction

DESCRIPTION

DTC Detection Condition:

This DTC is output when: 1) the brake signal circuit between the main body ECU and the stop light switch is malfunctioning; and 2) the CAN information is inconsistent.

HINT: When the main body 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.

After the main body ECU is replaced, perform the registration procedures for the engine immobilizer system.

Wiring Diagram:

Step 1-3:

Step 4-6:

Step 6 (Continued):

INSPECTION PROCEDURE

1. EMERGENCY ENGINE START CONTROL

a. If there is a malfunction in the stop light switch or STOP fuse, their signals may not be correctly transmitted to the main body ECU. This may result in the engine not starting even if the engine switch is pressed while the brake pedal is depressed and the shift lever is in the P position.
To activate the starter:

1. Turn the engine switch from off to on (ACC).
2. Press and hold the engine switch for 15 seconds.

HINT: Before performing the inspection, depress the brake pedal and check that the stop lights come on. If the stop lights do not come on when the brake pedal is depressed, shown in the brackets.