| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001H9LZ |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM: B2342; Switch Failure; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022] | ||
|
DTC |
B2342 |
Switch Failure |
DESCRIPTION
This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch (map light 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 assembly) is stuck for 30 seconds or more |
|
WIRING DIAGRAM
Refer to DTC B2341.
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![2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM: B2341,B2344; Sensor (Motor) Failure+](/t3Portal/stylegraphics/info.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.
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PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM |
(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.
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) |
- |
Body Electrical > Sliding Roof > Data List
|
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 |
|
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - BODY GROUND) |
(a) Disconnect the T12 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(b) Disconnect the T6 sliding roof switch (map light assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
T12-10 (OPN) or T6-14 (OPN) - Body ground |
Always |
10 kΩ or higher |
|
T12-8 (CLS) or T6-13 (CLS) - Body ground |
Always |
10 kΩ or higher |
|
T12-5 (UP) or T6-16 (UP) - Body ground |
Always |
10 kΩ or higher |
|
T12-9 (DWN) or T6-15 (DOWN) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
(a) Remove the sliding roof switch (map light assembly).
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(b) Inspect the sliding roof switch (map light assembly).
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| OK |
|
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
|
| NG |
|
|
|