Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Rear Power Seat Switch Circuit
DESCRIPTION
HINT:
The rear power seat switch is a collective term for the rear power seat switch RH and the rear power seat switch LH.
When the rear power seat switch is operated, a recline signal is sent to the fold seat control ECU. The fold seat control ECU operates the reclining motor according to the received signal.
WIRING DIAGRAM
PROCEDURE
| 1. | INSPECT REAR POWER SEAT SWITCH |
(a) Remove the rear power seat switch.
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(b) Inspect the rear power seat switch.
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| NG | .gif) | REPLACE REAR POWER SEAT SWITCH |
|
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| 2. | CHECK HARNESS AND CONNECTOR (REAR POWER SEAT SWITCH - FOLD SEAT CONTROL ECU AND BODY GROUND) |
(a) Disconnect the x6*1 or y5*2 rear power seat switch connector.
- *1: for Rear RH Seat
- *2: for Rear LH Seat
(b) Disconnect the x3*1 or y3*2 fold seat control ECU connector.
- *1: for Rear RH Seat
- *2: for Rear LH Seat
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for Rear RH Seat| Tester Connection | Condition | Specified Condition |
|---|---|---|
| x6-3 (FLDR) - x3-12 (RCLF) | Always | Below 1 Ω |
| x6-3 (FLDR) or x3-12 (RCLF) - Body ground | Always | 10 kΩ or higher |
| x6-2 (RTNR) - x3-7 (RCLR) | Always | Below 1 Ω |
| x6-2 (RTNR) or x3-7 (RCLR) - Body ground | Always | 10 kΩ or higher |
| x6-7 (E) - Body ground | Always | Below 1 Ω |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| y5-2 (FLDL) - y3-12 (RCLF) | Always | Below 1 Ω |
| y5-2 (FLDL) or y3-12 (RCLF) - Body ground | Always | 10 kΩ or higher |
| y5-3 (RTNL) - y3-7 (RCLR) | Always | Below 1 Ω |
| y5-3 (RTNL) or y3-7 (RCLR) - Body ground | Always | 10 kΩ or higher |
| y5-7 (E) - Body ground | Always | Below 1 Ω |
| OK | | GO TO PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Reclining Motor Circuit
DESCRIPTION HINT:
The rear power seat switch is a collective term for the rear power seat switch RH and the rear power seat switch LH.
The rear seatback frame sub-assembly is a collective term fo ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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