| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Seat | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000003GLH000X |
| Title: SEAT: REAR POWER SEAT CONTROL SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Position Sensor Circuit |
DESCRIPTION
The fold seat control ECU receives switch operation signals from the rear power seat switch and fold seat switch, and activates the power seat motor. At this time, the Hall IC (seatback position sensor) detects the actuation of the seatback and sends a seatback actuation signal to the fold seat control ECU. The fold seat control ECU uses signals from the Hall IC (seatback position sensor) to detect if an object is caught or if any other abnormal condition has occurred.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
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1. |
CHECK FOLD SEAT CONTROL ECU (SV2 TERMINAL) |
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(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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2. |
CHECK FOLD SEAT CONTROL ECU (POSITION SENSOR SIGNAL) |
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(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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3. |
CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - NO. 1 POWER SEAT MOTOR) |
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(a) Disconnect the O34 or P20 ECU connector. |
(b) Disconnect the a2 or Y2 motor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
LH Side
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O34-22 (SRCL) - a2-1 (HLS) |
Always |
Below 1 Ω |
|
O34-22 (SRCL) - Body ground |
Always |
10 kΩ or higher |
|
O34-25 (SV2) - a2-3 (HLV) |
Always |
Below 1 Ω |
|
O34-25 (SV2) - Body ground |
Always |
10 kΩ or higher |
|
O34-36 (SG2) - a2-2 (HLG) |
Always |
Below 1 Ω |
|
O34-36 (SG2) - Body ground |
Always |
10 kΩ or higher |
LH Side
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P20-22 (SRCL) - Y2-1 (HLS) |
Always |
Below 1 Ω |
|
P20-22 (SRCL) - Body ground |
Always |
10 kΩ or higher |
|
P20-25 (SV2) - Y2-3 (HLV) |
Always |
Below 1 Ω |
|
P20-25 (SV2) - Body ground |
Always |
10 kΩ or higher |
|
P20-36 (SG2) - Y2-2 (HLG) |
Always |
Below 1 Ω |
|
P20-36 (SG2) - Body ground |
Always |
10 kΩ or higher |
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