DESCRIPTION
The power management control ECU receives brake signal information from 2 sources. It receives a signal from the stop light switch assembly via a direct line, and a signal from the ECM via CAN. If the information from these 2 sources is inconsistent, this DTC will be stored.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2284 |
Stop light switch assembly operation information received by the power management control ECU from the stop light switch assembly via a direct line and stop light switch assembly information from the ECM via CAN are inconsistent. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
Check the connector connection to the terminal to make sure that there is no abnormality such as a loose connection, deformation, etc.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) |
|
3. |
INSPECT STOP LIGHT SWITCH ASSEMBLY |
(a) Remove the stop light switch assembly (See page
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1 - 2 |
Pushed |
10 kΩ or higher |
3 - 4 |
Pushed |
10 kΩ or higher |
1 - 2 |
Not pushed |
Below 1 Ω |
3 - 4 |
Not pushed |
Below 1 Ω |
NG | ![]() |
REPLACE STOP LIGHT SWITCH ASSEMBLY |
|
4. |
CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER MANAGEMENT CONTROL ECU) |
(a) Disconnect the D42 connector from the power management control ECU.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D42-10 (STP1) - A35-1 |
Always |
Below 1 Ω |
D42-10 (STP1) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Power Management Control ECU) |
*2 |
Front view of wire harness connector (to Stop Light Switch Assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER MANAGEMENT CONTROL ECU) |
|
5. |
READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH ASSEMBLY) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Power Source Control / Data List.
(e) Read the Data List according to the display on the Techstream.
Power Source Control
Tester Display |
Measurement Item/Range |
Normal Condition |
Specified Condition |
---|---|---|---|
Stop Light Switch1 |
Stop light switch1/ON or OFF |
ON: Brake pedal depressed OFF: Brake pedal released |
- |
Result |
Proceed to |
---|---|
ON and OFF do not appear on the screen. |
A |
ON and OFF appear on the screen (for 2GR-FE). |
B |
ON and OFF appear on the screen (for 1AR-FE). |
C |
A | ![]() |
REPLACE POWER MANAGEMENT CONTROL ECU |
B | ![]() |
GO TO SFI SYSTEM (for 2GR-FE) |
C | ![]() |
GO TO SFI SYSTEM (for 1AR-FE) |
All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
DESCRIPTION
The main body ECU (driver side junction block assembly) receives switch signals
from the door control switch and activates the door lock motor on each door according
to these signals.
WIRING DIAGRAM
PROCEDURE
1.
REA ...
Theft Deterrent System Presence Detection (B279C)
DESCRIPTION
If an ECM that is incompatible with the engine immobiliser system is installed,
the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
B279C
An ECM that is incompatible ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the power door lock control
system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT ...