Lexus ES: 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 (map light sub-assembly) is stuck for 30 seconds or more.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2342 | Switch Failure | Sliding roof ECU (sliding roof drive gear sub-assembly) detects sliding roof switch (map light sub-assembly) is stuck for 30 seconds or more |
|
WIRING DIAGRAM
Refer to DTC B2341.
Click here .gif)
CAUTION / NOTICE / HINT
NOTICE:
-
If the sliding roof ECU (sliding roof drive gear sub-assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear sub-assembly) must be initialized.
Click here
PROCEDURE
| 1. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(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.
Body Electrical > Sliding Roof > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Open Switch Failure(Past) | Open switch failure signal (Past) | OFF or ON | OFF: No sliding roof open switch failure signal (Past) ON: Sliding roof open switch failure signal (Past) | - |
| Close Switch Failure(Past) | Close switch failure signal (Past) | OFF or ON | OFF: No sliding roof close switch failure signal (Past) ON: Sliding roof close switch failure signal (Past) | - |
| Up Switch Failure(Past) | Up switch failure signal (Past) | OFF or ON | OFF: No sliding roof tilt up switch failure signal (Past) ON: Sliding roof tilt up switch failure signal (Past) | - |
| Down Switch Failure(Past) | Down switch failure signal (Past) | OFF or ON | OFF: No sliding roof tilt down switch failure signal (Past) ON: Sliding roof tilt down switch failure signal (Past) | - |
| Open Switch Failure(Current) | Open switch failure signal (Current) | OFF or ON | OFF: No sliding roof open switch failure signal (Current) ON: Sliding roof open switch failure signal (Current) | - |
| Close Switch Failure(Current) | Close switch failure signal (Current) | OFF or ON | OFF: No sliding roof close switch failure signal (Current) ON: Sliding roof close switch failure signal (Current) | - |
| Up Switch Failure(Current) | Up switch failure signal (Current) | OFF or ON | OFF: No sliding roof tilt up switch failure signal (Current) ON: Sliding roof tilt up switch failure signal (Current) | - |
| Down Switch Failure(Current) | Down switch failure signal (Current) | OFF or ON | OFF: No sliding roof tilt down switch failure signal (Current) ON: Sliding roof tilt down switch failure signal (Current) | - |
| Tester Display |
|---|
| Open Switch Failure(Past) |
| Close Switch Failure(Past) |
| Up Switch Failure(Past) |
| Down Switch Failure(Past) |
| Open Switch Failure(Current) |
| Close Switch Failure(Current) |
| Up Switch Failure(Current) |
| Down Switch Failure(Current) |
OK:
OFF is displayed for each Data List item.
| OK | .gif) | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
|
.gif)
| 2. | CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - BODY GROUND) |
(a) Disconnect the P22 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(b) Disconnect the P13 sliding roof switch (map light sub-assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P22-10 (OPN) or P13-11 (OPN) - Body ground | Always | 10 kΩ or higher |
| P22-8 (CLS) or P13-12 (CLS) - Body ground | Always | 10 kΩ or higher |
| P22-5 (UP) or P13-23 (UP) - Body ground | Always | 10 kΩ or higher |
| P22-9 (DWN) or P13-24 (DOWN) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | INSPECT SLIDING ROOF SWITCH (MAP LIGHT SUB-ASSEMBLY) |
(a) Remove the sliding roof switch (map light sub-assembly).
Click here
(b) Inspect the sliding roof switch (map light sub-assembly).
Click here
| OK | | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
| NG | | REPLACE SLIDING ROOF SWITCH (MAP LIGHT SUB-ASSEMBLY) |
READ NEXT:
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. Detection Item DTC Detection Condition Trouble Area B2343
Remote Control System does not Operate
DESCRIPTION The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or electrical key transmitter sub-assembly. Then, the main body ECU (multip
Key-off Operation Function Operates even if Operating Conditions are not Satisfied
DESCRIPTION The sliding roof ECU (sliding roof drive gear sub-assembly) operates its built-in motor according to the sliding roof switch (map light sub-assembly) operation. Using the sliding roof swit
SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL FRONT DOOR ILLUMINATION LIGHT (FRONT DOOR OUTSIDE HANDLE ASSEMBLY) Click here 2. INSTALL FRONT DOOR SERVICE HOLE COVER Click here
Basic Inspection
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following procedure, the location of the problem ca
