DESCRIPTION
This DTC is stored when LIN communication between the multiplex network master switch assembly and main body ECU (driver side junction block assembly) stops for more than 10 seconds.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1206 |
No communication between the multiplex network master switch assembly and main body ECU (driver side junction block assembly) for more than 10 seconds. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When using the Techstream to troubleshoot with the ignition switch off:
Connect the Techstream to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND) |
(a) Disconnect the I6 switch connector. |
|
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
I6-12 (E) - Body ground |
Always |
Below 1 Ω |
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
I6-11 (B) - Body ground |
Always |
11 to 14 V |
*1 |
Front view of wire harness connector (to Multiplex Network Master Switch Assembly) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MULTIPLEX NETWORK MASTER SWITCH) |
(a) Disconnect the D48 ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D48-10 (LIN2) - I6-17 (LIN1) |
Always |
Below 1 Ω |
I6-17 (LIN1) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
*2 |
Front view of wire harness connector (to Multiplex Network Master Switch Assembly) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
(a) Replace the multiplex network master switch assembly (See page ).
|
4. |
CHECK DTC OUTPUT |
(a) Clear the DTC (See page ).
(b) Recheck for DTCs.
OK:
DTC B1206 is not output.
OK |
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) |
NG |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
Microphone Circuit between Microphone and Radio Receiver
DESCRIPTION
The radio and display receiver assembly and inner rear view mirror assembly (amplifier
microphone assembly) are connected to each other using the microphone connection
detection signal lines.
Using this circuit, the radio and display receiver ...
Terminals Of Ecm
TERMINALS OF ECM
1. CHECK ECM
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A49-7 (TC) - B58-104 (E1)
V - BR
Terminal TC o ...
Assist Map Number Un-Writing (C1581)
DESCRIPTION
The power steering ECU stores this DTC when it determines that the assist map
is not written in the ECU.
HINT:
The assist map is data written in the power steering ECU to control the degree
of assistance. The assist map is selected based on ...