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 |
Inspection
INSPECTION
CAUTION / NOTICE / HINT
NOTICE:
The master cylinder and piston are designed so that the piston can easily
fall out. Prevent this by making sure the tip of the master cylinder faces
downward when handling the master cylinder.
M ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT REAR DOOR LOCK ASSEMBLY LH
(a) Check the door lock motor operation.
(1) Apply battery voltage to the door lock motor and check the operation
of the door lock motor.
OK:
Measurement Cond ...