- Sliding roof drive gear sub-assembly (Sliding roof ECU)
- Map light assembly (Sliding roof switch)
- Harness or connector
| Last Modified: 11-27-2007 | 1.6 C | |
| Service Category: Vehicle Exterior | Section: Sliding Roof/Convertible | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM0000029GH01BX |
| Title: SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM: DESCRIPTION (2008 LX570) | ||
|
DTC |
B2342 |
Switch Failure |
DESCRIPTION
This DTC is stored when the sliding roof drive gear (sliding roof ECU) detects that the sliding roof switch in the map light is stuck for 30 seconds or more.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2342 |
The sliding roof drive gear (sliding roof ECU) detects that the sliding roof switch in the map light is stuck for 30 seconds or more. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs
.
(b) Check the DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC B2342 is output |
A |
|
No DTC is output |
B |
|
|
2. |
READ VALUE USING TECHSTREAM (SWITCH STATUS) |
(a) Use the Data List to check if the sliding roof switch is functioning properly
.
Sliding Roof
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Open Switch Failure(Past) |
OPEN switch failure signal (Past)/ON or OFF |
ON: OPEN switch failure signal (Past) OFF: No OPEN switch failure signal (Past) |
- |
|
Close Switch Failure(Past) |
CLOSE switch failure signal (Past)/ON or OFF |
ON: CLOSE switch failure signal (Past) OFF: No CLOSE switch failure signal (Past) |
- |
|
Up Switch Failure(Past) |
UP switch failure signal (Past)/ON or OFF |
ON: UP switch failure signal (Past) OFF: No UP switch failure signal (Past) |
- |
|
Down Switch Failure(Past) |
DOWN switch failure signal (Past)/ON or OFF |
ON: DOWN switch failure signal (Past) OFF: No DOWN switch failure signal (Past) |
- |
|
Open Switch Failure(Current) |
OPEN switch failure signal (Current)/ON or OFF |
ON: OPEN switch failure signal (Current) OFF: No OPEN switch failure signal (Current) |
- |
|
Close Switch Failure(Current) |
CLOSE switch failure signal (Current)/ON or OFF |
ON: CLOSE switch failure signal (Current) OFF: No CLOSE switch failure signal (Current) |
- |
|
Up Switch Failure(Current) |
UP switch failure signal (Current)/ON or OFF |
ON: UP switch failure signal (Current) OFF: No UP switch failure signal (Current) |
- |
|
Down Switch Failure(Current) |
DOWN switch failure signal (Current)/ON or OFF |
ON: DOWN switch failure signal (Current) OFF: No DOWN switch failure signal (Current) |
- |
OK:
"OFF" appears on screen.
|
|
3. |
INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) |
(a) Remove the map light
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A-24 (UP) - A-16 (GND9) |
UP switch is pressed |
Below 1 Ω |
|
A-24 (UP) - A-16 (GND9) |
UP switch is not pressed |
10 kΩ or higher |
|
A-23 (DOWN) - A-16 (GND9) |
DOWN switch is pressed |
Below 1 Ω |
|
A-23 (DOWN) - A-16 (GND9) |
DOWN switch is not pressed |
10 kΩ or higher |
|
B-3 (OPN) - A-16 (GND9) |
OPEN switch is pressed |
Below 1 Ω |
|
B-3 (OPN) - A-16 (GND9) |
OPEN switch is not pressed |
10 kΩ or higher |
|
B-12 (CLS) - A-16 (GND9) |
CLOSE switch is pressed |
Below 1 Ω |
|
B-12 (CLS) - A-16 (GND9) |
CLOSE switch is not pressed |
10 kΩ or higher |
|
|
4. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT) |
(a) Disconnect the R5 drive gear connector.
(b) Disconnect the R7 and R12 map light connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R5-10 (UP) - R7-24 (UP) |
Always |
Below 1 Ω |
|
R5-8 (DWN) - R7-23 (DOWN) |
Always |
Below 1 Ω |
|
R5-7 (OPN) - R12-3 (OPN) |
Always |
Below 1 Ω |
|
R5-9 (CLS) - R12-12 (CLS) |
Always |
Below 1 Ω |
|
R7-16 (GND9) - Body ground |
Always |
Below 1 Ω |
|
R5-2 (E) - Body ground |
Always |
Below 1 Ω |
|
R5-10 (UP) or R7-24 (UP) - Body ground |
Always |
10 kΩ or higher |
|
R5-8 (DWN) or R7-23 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
R5-7 (OPN) or R12-3 (OPN) - Body ground |
Always |
10 kΩ or higher |
|
R5-9 (CLS) or R12-12 (CLS) - Body ground |
Always |
10 kΩ or higher |
|
|
|