DESCRIPTION
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2287 |
There is an open or short circuit or an ECU communication malfunction between the power management control ECU and certification ECU. |
|
B278C |
No communication between the certification ECU and power management control ECU for 10 seconds or more. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Connect the Techstream to the vehicle and turn a courtesy light switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.
HINT:
When DTC B2287, B278C and B2785 are output simultaneously, perform troubleshooting
for DTC B2785 first (See page ).
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs (See page ).
|
2. |
CHECK FOR DTC |
(a) Check for DTCs (See page ).
OK:
DTC B2287 or B278C is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
|
3. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - POWER MANAGEMENT CONTROL ECU) |
(a) Disconnect the F79 certification ECU connector.
(b) Disconnect the F80 power management control ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F79-29 (LIN) - F80-24 (LIN2) |
Always |
Below 1 Ω |
F79-29 (LIN) or F80-24 (LIN2) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BATTERY AND BODY GROUND) |
(a) Disconnect the F80 power management control ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F80-5 (GND2) - Body ground |
Always |
Below 1 Ω |
F80-6 (GND) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F80-1 (AM22) - Body ground |
Always |
11 to 14 V |
F80-2 (AM21) - Body ground |
Always |
11 to 14 V |
*a |
Rear view of wire harness connector (to Power Management Control ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
REPLACE POWER MANAGEMENT CONTROL ECU |
(a) Temporarily replace the power management control ECU with a new or normally
functioning one (See page ).
|
6. |
CLEAR DTC |
(a) Clear the DTCs (See page ).
|
7. |
CHECK FOR DTC |
(a) Check for DTCs (See page ).
OK:
DTC B2287 or B278C is not output.
OK | ![]() |
END (POWER MANAGEMENT CONTROL ECU IS DEFECTIVE) |
NG | ![]() |
REPLACE CERTIFICATION ECU |
Vsc Off Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE DRIVE MONITOR SWITCH
2. REMOVE MAP LIGHT ASSEMBLY
3. REMOVE VSC OFF SWITCH
(a) Disconnect the 2 connectors.
...
Short in Front Passenger Side Squib 2nd Step Circuit (B1815/54-B1818/54)
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the center airbag
sensor and instrument panel passenger airbag.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are stored when a malfunction is ...