Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Rear Door Courtesy Switch Circuit
DESCRIPTION
HINT:
The rear door courtesy light switch is a collective term for the rear door courtesy light switch (for RH) and the rear door courtesy light switch (for LH).
The fold seat control ECU receives switch operation signals, the driving condition signal and rear door courtesy light switch assembly signal and operates the rear power seat according to these signals.
WIRING DIAGRAM
PROCEDURE
| 1. | INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY |
(a) Remove the rear door courtesy light switch assembly.
Click here .gif)
(b) Inspect the rear door courtesy light switch assembly.
Click here
| NG | .gif) | REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY |
|
.gif)
| 2. | CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY) |
(a) for Rear RH Seat:
(1) Disconnect the x3 fold seat control ECU (rear RH seat) connector.
(2) Disconnect the R16 rear door courtesy light switch assembly (for RH) connector.
(b) for Rear LH Seat:
(1) Disconnect the y3 fold seat control ECU (rear LH seat) connector.
(2) Disconnect the S16 rear door courtesy light switch assembly (for LH) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for Rear RH Seat
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| x3-18 (RCL) - R16-1 | Always | Below 1 Ω |
| x3-18 (RCL) or R16-1 - Body ground | Always | 10 kΩ or higher |
for Rear LH Seat
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| y3-18 (RCL) - S16-1 | Always | Below 1 Ω |
| y3-18 (RCL) or S16-1 - Body ground | Always | 10 kΩ or higher |
| OK | | GO TO PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Park / Neutral Position Switch Circuit
DESCRIPTION The fold seat control ECU receives switch operation signals, the back door courtesy light switch assembly signal*1, rear door courtesy light switch assembly signal*2 and driving condition ...
Operation Check
OPERATION CHECK CHECK BASIC FUNCTION HINT: The rear power seat switch is a collective term for the rear power seat switch RH and the rear power seat switch LH. (a) Operate the rear power seat switch, ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Front Power Seat Control System (w/ Memory): Terminals Of Ecu
TERMINALS OF ECU CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY LH (a) Disconnect the c5 and c6 position control ECU and switch assembly LH connectors. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the con ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Front Power Seat Control System (w/ Memory): Wireless-linked Return Function does not Operate
DESCRIPTION When a door is unlocked using the wireless unlock function, the certification ECU (smart key ECU assembly) sends a key ID signal to the main body ECU (multiplex network body ECU). When a door is unlocked using the entry unlock function, the certification ECU (smart key ECU assembly) send ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0148