Toyota Tacoma 2015-2018 Service Manual: Switch Failure (B2342)
DESCRIPTION
This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch is stuck for 30 seconds or more.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2342 |
Sliding roof ECU (sliding roof drive gear sub-assembly) detects sliding roof switch is stuck for 30 seconds or more. |
|
WIRING DIAGRAM
Refer to DTC B2341 (See page .gif)
).
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
).
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (SLIDING ROOF SWITCH) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Sliding Roof / Data List.
(e) Read the Data List according to the display on the Techstream.
Sliding Roof|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Open Switch Failure(Past) |
Open switch failure signal (Past)/ON or OFF |
ON: Sliding roof open switch failure signal (Past) OFF: No sliding roof open switch failure signal (Past) |
- |
|
Close Switch Failure(Past) |
Close switch failure signal (Past)/ON or OFF |
ON: Sliding roof close switch failure signal (Past) OFF: No sliding roof close switch failure signal (Past) |
- |
|
Up Switch Failure(Past) |
Up switch failure signal (Past)/ON or OFF |
ON: Sliding roof tilt up switch failure signal (Past) OFF: No sliding roof tilt up switch failure signal (Past) |
- |
|
Down Switch Failure(Past) |
Down switch failure signal (Past)/ON or OFF |
ON: Sliding roof tilt down switch failure signal (Past) OFF: No sliding roof tilt down switch failure signal (Past) |
- |
|
Open Switch Failure(Current) |
Open switch failure signal (Current)/ON or OFF |
ON: Sliding roof open switch failure signal (Current) OFF: No sliding roof open switch failure signal (Current) |
- |
|
Close Switch Failure(Current) |
Close switch failure signal (Current)/ON or OFF |
ON: Sliding roof close switch failure signal (Current) OFF: No sliding roof close switch failure signal (Current) |
- |
|
Up Switch Failure(Current) |
Up switch failure signal (Current)/ON or OFF |
ON: Sliding roof tilt up switch failure signal (Current) OFF: No sliding roof tilt up switch failure signal (Current) |
- |
|
Down Switch Failure(Current) |
Down switch failure signal (Current)/ON or OFF |
ON: Sliding roof tilt down switch failure signal (Current) OFF: No sliding roof tilt down switch failure signal (Current) |
- |
OK:
"OFF" appears on the Techstream screen.
| OK | .gif) |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - BODY GROUND) |
(a) Disconnect the S50 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(b) Disconnect the R44 sliding roof switch (roof console box assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S50-7 (OPN) - Body ground |
Always |
10 kΩ or higher |
|
S50-6 (DWN) - Body ground |
Always |
10 kΩ or higher |
|
S50-5 (CLS) - Body ground |
Always |
10 kΩ or higher |
|
S50-4 (UP) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
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) |
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Sliding Roo ...
Position Initialization Incomplete (B2343)
DESCRIPTION
This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly)
has not been initialized.
DTC No.
DTC Detection Condition
Trouble A ...
Other materials:
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION
BLOCK
(a) Disconnect the main body ECU (multiplex network body ECU) connectors.
Text in Illustration
*1
Main Body ECU (Multiplex Network Body ECU)
-
-
...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Check the DTCs.
(1) Turn the ignition switch off.
(2) Connect the Techstream to the DLC3.
(3) Turn the ignition switch to ON.
(4) Turn the Techstream on.
(5) Read the DTCs following the prompts on the Techstream screen. Enter the following
menus: Powertrai ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the RH and LH sides.
The procedure described below is for the LH side.
PROCEDURE
1. PRECAUTION
CAUTION:
Be sure to read Precaution thoroughly before servicing (See page
).
NOTICE:
After turning the ign ...