Dtc B2284 Brake Signal Malfunction. Corolla Auris

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE OF INTELLIGENT TESTER (STOP LIGHT SWITCH)

CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)

CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)

INSPECT FUSE (STOP)

CHECK HARNESS AND CONNECTOR (STOP FUSE - STOP LIGHT SWITCH)

INSPECT STOP LIGHT SWITCH

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - MAIN BODY ECU)

DESCRIPTION

УКАЗАНИЕ:

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 immobiliser system.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. 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.
      

УКАЗАНИЕ:

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, refer to the page shown in the brackets (See page Нажмите здесь).

1. Connect the intelligent tester to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Check the DATA LIST for proper functioning of the stop light switch.
   
   

   Body:

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Stop Light SW	Stop light switch/ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-

   OK:

   ON (brake pedal depressed) and OFF (brake pedal released) appear on the screen.
   

1. Delete the DTCs (See page Нажмите здесь).
   

2. Check for CAN communication system DTCs (See page Нажмите здесь).
   

   УКАЗАНИЕ:

   If the DTCs for the CAN communication system malfunction are output, inspect those DTCs first (See page Нажмите здесь).

   OK:

   No DTC is output.
   

1. Delete the DTCs (See page Нажмите здесь).
   

2. Check for DTC P0500 (Vehicle speed sensor A).
   

   OK:

   No DTC is output.
   

1. Remove the STOP fuse from the instrument panel junction block.
   

2. Measure the resistance of the fuse.
   

   Standard resistance:

   Below 1 Ω
   

1. Disconnect the A1 switch connector.
   

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   A1-2 - Body ground	Always	11 to 14 V

1. Remove the stop light switch (See page Нажмите здесь).
   

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

   Standard resistance:

   Tester Connection	Switch Condition	Specified Condition
   1 - 2	Switch pin free	Below 1 Ω
   3 - 4	Switch pin free	10 kΩ or higher
   1 - 2	Switch pin pushed in	10 kΩ or higher
   3 - 4	Switch pin pushed in	Below 1 Ω

1. Disconnect E50 ECU connector.
   

   
   
   
   

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

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   A1-1 - E50-14 (STP)	Always	Below 1 Ω
   A1-2 - Body ground		10 kΩ or higher