Toyota Venza: Touch Sensor Circuit
DESCRIPTION
When the power back door ECU receives a jam signal from the touch sensor while the power back door is operating, the ECU reverses the back door operation and opens the door.
WIRING DIAGRAM
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PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (POWER BACK DOOR TOUCH SENSOR) |
(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 / Back Door / Data List.
(e) Check the Data List for proper functioning of the power back door touch sensor.
Back Door (Power back door ECU)|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
PBD Touch Sensor (Right) |
Power back door touch sensor RH signal / ON, OFF or Open |
ON: Power back door touch sensor RH pressed OFF: Power back door touch sensor RH not pressed Open: Power back door touch sensor RH circuit open |
- |
|
PBD Touch Sensor (Left) |
Power back door touch sensor LH signal / ON, OFF or Open |
ON: Power back door touch sensor LH pressed OFF: Power back door touch sensor LH not pressed Open: Power back door touch sensor LH circuit open |
- |
|
Result |
Proceed to |
|---|---|
|
ON and OFF function is normal |
A |
|
ON and OFF function is not normal, or Open is displayed for LH touch sensor |
B |
|
ON and OFF function is not normal, or Open is displayed for RH touch sensor |
C |
| A | .gif) |
END |
| C | |
GO TO STEP 5 |
|
.gif)
|
2. |
CHECK POWER BACK DOOR TOUCH SENSOR LH (POWER BACK DOOR TOUCH SENSOR LH - BODY GROUND) |
|
(a) Disconnect the R3 power back door touch sensor LH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 (OSL) - Body ground |
Always |
10 kΩ or higher |
|
2 (OSLE) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Component without harness connected (Power Back Door Touch Sensor LH) |
HINT:
Perform this inspection with the touch sensor installed on the vehicle.
| NG | |
REPLACE POWER BACK DOOR TOUCH SENSOR LH |
|
|
3. |
INSPECT POWER BACK DOOR TOUCH SENSOR LH |
(a) Remove the power back door touch sensor LH (See page
.gif)
).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 (OSL) - 2 (OSLE) |
Not pressed |
950 to 1050 Ω |
|
1 (OSL) - 2 (OSLE) |
Pressed |
Below 100 Ω |
| NG | |
REPLACE POWER BACK DOOR TOUCH SENSOR LH |
|
|
4. |
CHECK HARNESS AND CONNECTOR (TOUCH SENSOR LH - POWER BACK DOOR ECU AND BODY GROUND) |
|
(a) Disconnect the R3 power back door touch sensor LH connector and L20 power back door ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R3-1 (OSL) - L20-15 (OSL) |
Always |
Below 1 Ω |
|
R3-2 (OSLE) - L20-14 (OSE) |
Always |
Below 1 Ω |
|
R3-1 (OSL) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Front view of wire harness connector (to Power Back Door Touch Sensor LH) |
|
*2 |
Front view of wire harness connector (to Power Back Door ECU) |
| OK | |
REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK POWER BACK DOOR TOUCH SENSOR RH (POWER BACK DOOR TOUCH SENSOR RH - BODY GROUND) |
|
(a) Disconnect the R4 power back door touch sensor RH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 (OSR) - Body ground |
Always |
10 kΩ or higher |
|
2 (OSRE) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Component without harness connected (Power Back Door Touch Sensor RH) |
HINT:
Perform this inspection with the touch sensor installed on the vehicle.
| NG | |
REPLACE POWER BACK DOOR TOUCH SENSOR RH |
|
|
6. |
INSPECT POWER BACK DOOR TOUCH SENSOR RH |
(a) Remove the power back door touch sensor RH (See page
).
Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 (OSR) - 2 (OSRE) |
Not pressed |
950 to 1050 Ω |
|
1 (OSR) - 2 (OSRE) |
Pressed |
Below 100 Ω |
| NG | |
REPLACE POWER BACK DOOR TOUCH SENSOR RH |
|
|
7. |
CHECK HARNESS AND CONNECTOR (TOUCH SENSOR RH - POWER BACK DOOR ECU AND BODY GROUND) |
|
(a) Disconnect the R4 power back door touch sensor RH connector and L20 power back door ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R4-1 (OSR) - L20-13 (OSR) |
Always |
Below 1 Ω |
|
R4-2 (OSRE) - L20-14 (OSE) |
Always |
Below 1 Ω |
|
R4-1 (OSR) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Front view of wire harness connector (to Power Back Door Touch Sensor RH) |
|
*2 |
Front view of wire harness connector (to Power Back Door ECU) |
| OK | |
REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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COMPONENTS
ILLUSTRATION
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REMOVAL
PROCEDURE
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CAUTION / NOTICE / HINT
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*: Use the Techstream.
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1.
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