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:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in order
of probability in the "Suspected Area" column of the table. Check each symptom by
check ...
Main Body ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Main Body ECU Communication Stop Mode
Either condition is met:
Communication stop for "Main Body" is indicated on the "Communication
Bus Check" screen ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Smart key system (for start function) data and the Diagnostic Trouble Codes
(DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When
the system seems to be malfunctioning, use the Techstream to check for malfunctions
and perform rep ...