Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Reverse Signal Circuit
DESCRIPTION
The multi-display assembly receives a reverse signal from the park/neutral position switch assembly*1 or clearance warning ECU assembly*2.
*1: except 12.3 Inch Display and w/ Intuitive Parking Assist System
*2: for 12.3 Inch Display and w/ Intuitive Parking Assist System
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When "!" mark is displayed on the multi-display assembly after disconnecting the cable from the negative (-) battery terminal, correct the steering angle neutral point.
Click here
.gif)
-
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed.
Click here
PROCEDURE
| 1. | CHECK BACK-UP LIGHT |
(a) Check that the back-up light comes on.
OK:
The back-up light comes on.
| Result | Proceed to |
|---|---|
| OK (except 12.3 Inch Display and w/ Intuitive Parking Assist System) | A |
| OK (for 12.3 Inch Display and w/ Intuitive Parking Assist System) | B |
| NG | C |
| B | .gif) | GO TO STEP 3 |
| C | | GO TO LIGHTING SYSTEM (EXT) |
|
.gif)
| 2. | CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL) |
| (a) Disconnect the J56 multi-display assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J56-3 (REV) - Body ground | Engine switch on (IG) Shift position in R | 11 to 14 V |
| J56-3 (REV) - Body ground | Engine switch on (IG) Shift position not in R | Below 1 V |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 3. | CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL) |
| (a) Disconnect the J38 clearance warning ECU assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J38-28 (STP) - Body ground | Engine switch on (IG) Shift position in R | 11 to 14 V |
| J38-28 (STP) - Body ground | Engine switch on (IG) Shift position not in R | Below 1 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. | CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - MULTI-DISPLAY ASSEMBLY) |
(a) Disconnect the J38 clearance warning ECU assembly connector.
(b) Disconnect the J56 multi-display assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J38-31 (IND) - J56-14 (CSWA) | Always | Below 1 Ω |
| J38-31 (IND) or J56-14 (CSWA) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 5. | INSPECT CLEARANCE WARNING ECU ASSEMBLY |
| (a) Disconnect the multi-display assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J38-31 (IND) - Body ground | Engine switch on (IG) Shift position in R | Below 3 V |
| J38-31 (IND) - Body ground | Engine switch on (IG) Shift position not in R | 8 V or higher |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
Image from Camera for Parking Assist Monitor is Abnormal
DESCRIPTION The video signal from the rear television camera assembly is transmitted to the multi-display assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
When "!" mark is displayed on the ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Automatic Transaxle System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NE ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Parking Assist Monitor System: Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System Pre-collision Sys ...
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
- General
- Audio & Visual & Telematics
- Brake
- Drivetrain
- Engine & Hybrid System
- Power Source & Network
- Steering
- Suspension
- Vehicle Exterior
- Vehicle Interior
Chevrolet Trax (2013-2022) Owner's Manual
0.0159