DESCRIPTION
This DTC is stored when LIN communication between the power window regulator master switch assembly and main body ECU (multiplex network body ECU) stops for 10 seconds or more.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1206 |
No communication between power window regulator master switch assembly and main body ECU (multiplex network body ECU) for 10 seconds or more. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
INSPECT DRIVER SIDE JUNCTION BLOCK |
(a) Remove the driver side junction block (See page ).
(b) Remove the main body ECU (multiplex network body ECU) from the driver side junction block.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-13 - MB-16 (LIN2) |
Always |
Below 1 Ω |
*a |
Component without harness connected (Driver Side Junction Block) |
- |
- |
HINT:
This inspection is to check the LIN line in the driver side junction block that connects the wire harness to the built-in main body ECU (multiplex network body ECU).
NG |
REPLACE DRIVER SIDE JUNCTION BLOCK |
|
2. |
CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK - POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY) |
(a) for Double Cab
(1) Disconnect the 1D driver side junction block connector.
(2) Disconnect the P18 power window regulator master switch assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-13 - P18-6 (LIN1) |
Always |
Below 1 Ω |
1D-13 or P18-6 (LIN1) - Body ground |
Always |
10 kΩ or higher |
(b) for Access Cab
(1) Disconnect the 1D driver side junction block connector.
(2) Disconnect the P23 power window regulator master switch assembly connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-13 - P23-17 (LIN1) |
Always |
Below 1 Ω |
1D-13 or P23-17 (LIN1) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH - POWER SOURCE CIRCUIT) |
(a) for Double Cab
(1) Disconnect the P18 power window regulator master switch assembly connector.
(2) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P18-3 (B) - P18-1 (GND) |
Always |
11 to 14 V |
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P18-1 (GND) - Body ground |
Always |
Below 1 Ω |
(b) for Access Cab
(1) Disconnect the P23 power window regulator master switch assembly connector.
(2) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P23-11 (B) - P23-12 (GND) |
Always |
11 to 14 V |
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P23-12 (GND) - Body ground |
Always |
Below 1 Ω |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY |
(a) Replace the power window regulator master switch assembly.
|
5. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs.
OK:
DTC B1206 is not output.
OK |
END (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY WAS DEFECTIVE) |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX BODY ECU) |
Accumulator Low Pressure (C1256)
DESCRIPTION
The accumulator pressure sensor is connected to the skid control ECU in the master
cylinder solenoid.
DTC No.
DTC Detecting Condition
Trouble Areas
C1256
Fluid pressure inside the accumulator drops below the specification ...
Precaution
PRECAUTION
1. INITIALIZATION
NOTICE:
If the ECM is replaced, register the ECU communication ID for Engine
Immobiliser System (See page ).
Perform Registration (VIN registration) when replacing the ECM (See
page ).
HINT:
The engine learned value cannot be rese ...
Noise Occurs or Sound Skips when Portable Player Plays
CAUTION / NOTICE / HINT
HINT:
Perform this check with the portable player volume set at an appropriate
level.
Make sure that there are no obstructions between the portable player
and navigation receiver assembly that may block signals, and that the portable
player and navig ...