DESCRIPTION
This DTC is stored when LIN communication between the multiplex network door ECU (back door P/W) and main body ECU (multiplex network body ECU) stops for 10 seconds or more.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1287 |
No communication between the multiplex network door ECU (back door P/W) and main body ECU (multiplex network body 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 communication between the multiplex network door ECU (back door P/W) and main body ECU (multiplex network body ECU) stops, DTC B2325 is also stored.
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs (See page ).
|
2. |
CHECK FOR DTC |
(a) Check for DTCs (See page ).
OK:
DTC B1287 is not output.
OK |
USE SIMULATION METHOD TO CHECK |
|
3. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MULTIPLEX NETWORK DOOR ECU) |
(a) Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly (See page ).
(b) Disconnect the V2 multiplex network door ECU (back door P/W) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A-16 (LIN2) - V2-16 (MPX1) |
Always |
Below 1 Ω |
A-16 (LIN2) or V2-16 (MPX1) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - BATTERY AND BODY GROUND) |
(a) Disconnect the V2 multiplex network door ECU (back door P/W) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
V2-6 (GND) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
V2-1 (BDR) - Body ground |
Always |
11 to 14 V |
V2-7 (BECU) - Body ground |
Always |
11 to 14 V |
V2-8 (SIG) - Body ground |
Ignition switch ON |
11 to 14 V |
*a |
Rear view of wire harness connector (to Multiplex Network Door ECU [Back Door P/W]) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
REPLACE MULTIPLEX NETWORK DOOR ECU |
(a) Temporarily replace the multiplex network door ECU (back door P/W) 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 B1287 is not output.
OK |
END (MULTIPLEX NETWORK DOOR ECU IS DEFECTIVE) |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Removal
REMOVAL
PROCEDURE
1. REMOVE PROPELLER SHAFT ASSEMBLY
(a) Place matchmarks on the propeller shaft flange and differential flange.
Text in Illustration
*a
Matchmark
...
Disposal
DISPOSAL
CAUTION / NOTICE / HINT
CAUTION:
Before performing pre-disposal deployment of any SRS part, review and closely
follow all applicable environmental and hazardous material regulations. Pre-disposal
deployment may be considered hazardous material ...