DESCRIPTION
This DTC is stored when LIN communication between the front power window regulator motor assembly LH and main body ECU (multiplex network body ECU) stops for 10 seconds or more.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2321 |
No communication between front power window regulator motor assembly LH and main body ECU (multiplex network body ECU) for 10 seconds or more. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs.
Result |
Proceed to |
---|---|
Only DTC B2321 is output. |
A |
DTC B1206 and B2321 are output simultaneously. |
B |
HINT:
When DTC B1206 and B2321 are output simultaneously, perform troubleshooting for DTC B1206 first.
B |
GO TO DTC B1206 |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH) |
(a) for Double Cab
(1) Disconnect the P18 power window regulator master switch assembly connector.
(2) Disconnect the P24 front power window regulator motor assembly LH connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P18-7 (LIN2) - P24-9 (LIN) |
Always |
Below 1 Ω |
P18-7 (LIN2) or P24-9 (LIN) - Body ground |
Always |
10 kΩ or higher |
(b) for Access Cab
(1) Disconnect the P23 power window regulator master switch assembly connector.
(2) Disconnect the P24 front power window regulator motor assembly LH connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P23-16 (LIN2) - P24-9 (LIN) |
Always |
Below 1 Ω |
P23-16 (LIN2) or P24-9 (LIN) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY |
(a) for Double Cab
(1) Remove the power window regulator master switch assembly. |
|
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
6 (LIN1) - 7 (LIN2) |
Always |
Below 1 Ω |
*a |
Component without harness connected (Power Window Regulator Master Switch Assembly) |
(b) for Access Cab
(1) Remove the power window regulator master switch assembly. |
|
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
17 (LIN1) - 16 (LIN2) |
Always |
Below 1 Ω |
*a |
Component without harness connected (Power Window Regulator Master Switch Assembly) |
NG |
REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH - POWER SOURCE CIRCUIT) |
(a) Disconnect the P24 front power window regulator motor assembly LH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P24-2 (B) - Body ground |
Always |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
P24-1 (GND) - Body ground |
Always |
Below 1 Ω |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH |
(a) Replace the front power window regulator motor assembly LH.
|
6. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Check for DTCs.
OK:
DTC B2321 is not output.
OK |
END (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH) WAS DEFECTIVE) |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL SHIFT SOLENOID VALVE SLT
(a) Install the shift solenoid valve SLT and straight pin to the transmission
valve body assembly.
2. INSTALL SHIFT SOLENOID VALVE SL2
(a) Install the shift solenoid valv ...
Freeze Frame Data
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) Whenever a DTC is detected, the blind spot monitor sensor stores the current
vehicle (sensor) state as Freeze Frame Data.
2. CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the blind spot ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE INTAKE VALVE
(a) Using SST, compress the inner compression spring and remove the valve
spring retainer locks.
SST: 09202-70020
SST: 09202-00021
09202-01010
09202-01020
(b) Remove the valve s ...