Toyota 4Runner: 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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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. |
PERFORM ACTIVE TEST USING TECHSTREAM (SLIDING ROOF) |
(a) Select the Active Test, use the Techstream to generate a control command,
and then check that the sliding roof slides open/closed and tilts up/down (See page
).
Sliding Roof
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Slide Roof |
Operate sliding roof |
Opn/Dwn: Sliding roof slide open or tilt down operation occurs Clos/Up: Sliding roof slide close or tilt up operation occurs OFF: Sliding roof not operating |
- |
OK:
The sliding roof operates normally.
| NG | .gif) |
REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) |
|
.gif)
|
2. |
READ VALUE USING TECHSTREAM (SLIDING ROOF) |
(a) Using the Techstream, read the Data List (See page
).
Sliding Roof
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Open Switch |
Slide open switch signal / ON or OFF |
ON: Slide open switch pressed OFF: Slide open switch not pressed |
- |
|
Close Switch |
Slide close switch signal / ON or OFF |
ON: Slide close switch pressed OFF: Slide close switch not pressed |
- |
|
Up Switch |
Tilt up switch signal / ON or OFF |
ON: Tilt up switch pressed OFF: Tilt up switch not pressed |
- |
|
Down Switch |
Tilt down switch signal / ON or OFF |
ON: Tilt down switch pressed OFF: Tilt down switch not pressed |
- |
OK:
When operating the switch, the Techstream displays as shown in the table.
| OK | |
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 |
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 ...
Sliding Roof ECU Power Source Circuit
DESCRIPTION
If the sliding function and tilt function do not operate, there may be a malfunction
in the sliding roof drive gear sub-assembly power source circuit.
WIRING DIAGRAM
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