Toyota Tacoma (2015-2018) Service Manual: Sensor (Motor) Failure (B2341,B2344)
DESCRIPTION
When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 is stored.
When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a gear position malfunction and the sliding roof operation is stopped, DTC B2344 is stored.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2341 |
Sensor (motor) failure (When the sliding roof ECU enters fail-safe mode due to a problem with the motor) |
|
|
B2344 |
Position failure (When the sliding roof ECU enters fail-safe mode due to a problem with the gear position) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When the sliding roof ECU (sliding roof drive gear sub-assembly) is
removed and reinstalled or replaced, it requires initialization (See page
.gif)
). - The sliding roof system uses the CAN and LIN communication systems.
First, confirm that there are no malfunctions in the CAN and LIN communication
systems. Refer to the How to Proceed with Troubleshooting procedure (See
page ).
PROCEDURE
|
1. |
CHECK SLIDING ROOF OPERATION |
(a) Check the sliding roof auto operation (See page
).
OK:
Auto operation operates normally.
| NG | .gif) |
GO TO STEP 3 |
|
.gif)
|
2. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Check for DTCs.
OK:
DTC B2341 or B2344 is not output.
| OK | |
USE SIMULATION METHOD TO CHECK |
| NG | |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
|
3. |
INITIALIZE SLIDING ROOF ECU (SLIDING ROOF HOUSING SUB-ASSEMBLY) |
(a) Check that the sliding roof ECU (sliding roof drive gear sub-assembly) can
be initialized (See page ).
OK:
Sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.
| NG | |
GO TO STEP 5 |
|
|
4. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Check for DTCs.
OK:
DTC B2341 or B2344 is not output.
| OK | |
END (PROBLEM DUE TO INITIALIZATION FAILURE) |
| NG | |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
|
5. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH AND BODY GROUND) |
(a) Disconnect the R44 sliding roof switch (roof console box assembly) connector.
(b) Disconnect the S50 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S50-5 (CLS) - R44-18 (CLS) |
Always |
Below 1 Ω |
|
S50-5 (CLS) - Body ground |
Always |
10 kΩ or higher |
|
S50-7 (OPN) - R44-19 (OPN) |
Always |
Below 1 Ω |
|
S50-7 (OPN) - Body ground |
Always |
10 kΩ or higher |
|
S50-6 (DWN) - R44-20 (DOWN) |
Always |
Below 1 Ω |
|
S50-6 (DWN) - Body ground |
Always |
10 kΩ or higher |
|
S50-4 (UP) - R44-17 (UP) |
Always |
Below 1 Ω |
|
S50-4 (UP) - Body ground |
Always |
10 kΩ or higher |
|
R44-12 (GND) - Body ground |
Always |
Below 1 Ω |
|
S50-12 (E) - Body ground |
Always |
Below 1 Ω |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
INSPECT SLIDING ROOF SWITCH (ROOF CONSOLE BOX ASSEMBLY) |
|
(a) Remove the sliding roof switch (roof console box assembly) (See page
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
17 (UP) - 12 (GND) |
UP switch is pressed |
Below 1 Ω |
|
17 (UP) - 12 (GND) |
UP switch is not pressed |
10 kΩ or higher |
|
20 (DOWN) - 12 (GND) |
DOWN switch is pressed |
Below 1 Ω |
|
20 (DOWN) - 12 (GND) |
DOWN switch is not pressed |
10 kΩ or higher |
|
19 (OPN) - 12 (GND) |
OPEN switch is pressed |
Below 1 Ω |
|
19 (OPN) - 12 (GND) |
OPEN switch is not pressed |
10 kΩ or higher |
|
18 (CLS) - 12 (GND) |
CLOSE switch is pressed |
Below 1 Ω |
|
18 (CLS) - 12 (GND) |
CLOSE switch is not pressed |
10 kΩ or higher |
|
*a |
Component without harness connected (Sliding Roof Switch (Roof Console Box Assembly)) |
| OK | |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
| NG | |
REPLACE SLIDING ROOF SWITCH (ROOF CONSOLE BOX ASSEMBLY) |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))
DTC Code
Detection Item
See page
B2341
...
Remote Control System does not Operate
DESCRIPTION
The main body ECU (multiplex network body ECU) receives remote control signals
from the driver door key cylinder or wireless transmitter. Then, the main body ECU
(multiplex network bo ...
Other materials:
Installation
INSTALLATION
PROCEDURE
1. INSTALL FORWARD RECOGNITION CAMERA
NOTICE:
When replacing the forward recognition camera, replace it with a new
one.
Do not touch the camera lens. If the camera lens has been touched, do
not use the forward recognition camera.
If the forward reco ...
System Description
SYSTEM DESCRIPTION
1. SYSTEM DESCRIPTION
The following pattern will be used: "Operation" indicates user operation using
the smart key system. "Expected operation of the vehicle" indicates how a known
good vehicle will react in accordance with each operation. "Suspected ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL NO. 1 STEREO JACK ADAPTER ASSEMBLY
(a) Engage the 2 claws to install the No. 1 stereo jack adapter assembly.
2. INSTALL INSTRUMENT PANEL LOWER CENTER FINISH PANEL
(See page )
3. INSTALL NO. 2 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY
(See page )
4. INSTALL F ...
