Position Initialization Incomplete (B2343)
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. |
|
.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
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)
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) |
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) |
|
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 |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.