WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. | CHECK SYMPTOMS |
(a) Recheck the situation when the malfunction occurs.
HINT:
Result | Proceed to |
---|---|
Symptom occurs in any situation. | A |
Symptom occurs when hand is rested on the remote touch screen while driving. | B |
Symptom occurs when accelerating excessively on rough roads. | C |
B | END |
C | GO TO STEP 5 |
|
2. | CHECK FOR FOREIGN MATTER |
(a) Check if there is any foreign matter around the remote touch screen that interferes with operation of the screen.
OK:
There is no foreign matter around the remote touch screen that interferes with operation of the screen.
NG | REMOVE FOREIGN MATTER (CHECK OPERATION AGAIN) |
|
3. | REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) SELF CHECK (CHECK REMOTE TOUCH SCREEN OPERATION POSITION RECOGNITION CONDITION) |
(a) Enter self-diagnostic mode.
Click here
(b) Operate the remote touch screen diagonally from the upper left to the lower right and check that the brightness of the switch illumination changes. NOTICE: Since the remote touch screen may recognize a pinch in/out operation if operated with 2 fingers, always use 1 finger to operate the remote touch screen in self-diagnostic mode. OK: Brightness changes according to touch screen operation.
HINT: When the switch illumination blinks, the remote touch (remote operation controller assembly) has stored a DTC. |
|
B | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
|
4. | REPLACE NAVIGATION ECU |
(a) Replace the navigation ECU with a new one.
Click here
(b) Check the malfunction disappears.
OK:
Malfunction disappears.
OK | END (NAVIGATION ECU IS DEFECTIVE) |
NG | REPLACE RADIO RECEIVER ASSEMBLY |
5. | CHECK CONNECTOR CONNECTION CONDITION |
(a) Check if the J154 remote touch (remote operation controller assembly) connector is securely connected.
OK:
The connector is securely connected.
NG | SECURELY CONNECTED |
|
6. | CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) POWER SOURCE) |
(a) Disconnect the J154 remote touch (remote operation controller assembly) connector.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
J154-1 (+B) - Body ground | Always | 11 to 14 V |
J154-6 (ACC) - Body ground | Engine switch on (ACC) | 11 to 14 V |
OK | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Intelligent Clearance Sonar System: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Steering Pad Switch: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the steering pad switch assembly removal/installation are shown below. Necessary Procedure After Parts Rem ...