Toyota 4Runner: Position Initialization Incomplete (B2343)
DESCRIPTION
This DTC is stored when the sliding roof drive gear sub-assembly (sliding roof ECU) has not been initialized.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2343 |
The sliding roof drive gear sub-assembly (sliding roof ECU) has not been initialized. |
|
WIRING DIAGRAM
.png)
CAUTION / NOTICE / HINT
NOTICE:
When the sliding roof drive gear sub-assembly (sliding roof ECU) is removed and
reinstalled or replaced, the sliding roof drive gear sub-assembly (sliding roof
ECU) must be initialized (See page .gif)
).
PROCEDURE
|
1. |
INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY |
(a) Check that the sliding roof drive gear sub-assembly (sliding roof ECU) can
be initialized (See page ).
OK:
The sliding roof drive gear sub-assembly can be initialized.
| NG | .gif) |
GO TO STEP 3 |
|
.gif)
|
2. |
CHECK FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
Result
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC B2343 is output |
B |
| A | |
END |
| B | |
REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) |
|
3. |
INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) |
.png)
|
*a |
Component without harness connected (Map Light Assembly (Sliding Roof Switch)) |
(a) Remove the map light assembly (sliding roof switch) (See page
).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
5 (UP) - 1 (GND) |
Tilt up switch pressed |
Below 1 Ω |
|
5 (UP) - 1 (GND) |
Tilt up switch not pressed |
10 kΩ or higher |
|
4 (DOWN) - 1 (GND) |
Tilt down switch pressed |
Below 1 Ω |
|
4 (DOWN) - 1 (GND) |
Tilt down switch not pressed |
10 kΩ or higher |
|
3 (OPN) - 1 (GND) |
Slide open switch pressed |
Below 1 Ω |
|
3 (OPN) - 1 (GND) |
Slide open switch not pressed |
10 kΩ or higher |
|
2 (CLS) - 1 (GND) |
Slide close switch pressed |
Below 1 Ω |
|
2 (CLS) - 1 (GND) |
Slide close switch not pressed |
10 kΩ or higher |
| NG | |
REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) |
|
|
4. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) - MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) AND BODY GROUND) |
(a) Disconnect the S10 sliding roof drive gear sub-assembly (sliding roof ECU) connector.
(b) Disconnect the U2 map light assembly (sliding roof switch) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S10-4 (UP) - U2-5 (UP) |
Always |
Below 1 Ω |
|
S10-6 (DWN) - U2-4 (DOWN) |
Always |
Below 1 Ω |
|
S10-7 (OPN) - U2-3 (OPN) |
Always |
Below 1 Ω |
|
S10-5 (CLS) - U2-2 (CLS) |
Always |
Below 1 Ω |
|
U2-1 (GND) - Body ground |
Always |
Below 1 Ω |
|
S10-12 (E) - Body ground |
Always |
Below 1 Ω |
|
S10-4 (UP) or U2-5 (UP) - Body ground |
Always |
10 kΩ or higher |
|
S10-6 (DWN) or U2-4 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
S10-7 (OPN) or U2-3 (OPN) - Body ground |
Always |
10 kΩ or higher |
|
S10-5 (CLS) or U2-2 (CLS) - Body ground |
Always |
10 kΩ or higher |
| OK | |
REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Switch Failure (B2342)
DESCRIPTION
This DTC is stored when the sliding roof drive gear sub-assembly (sliding roof
ECU) detects that the sliding roof switch in the map light assembly is stuck for
30 seconds or more.
...
Sliding Roof Control Switch Circuit
DESCRIPTION
The sliding roof drive gear sub-assembly (sliding roof ECU) receives sliding
roof switch signals and drives its built-in motor.
WIRING DIAGRAM
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