PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected:
System | See Procedure |
---|---|
Lane Control System | |
Pre-collision System | |
Intelligent Clearance Sonar System | |
Parking Assist Monitor System | |
Panoramic View Monitor System | |
Lighting System (w/ Automatic Headlight Beam Level Control System) | |
Power Door Lock Control System | |
Power Back Door System (w/ Outside Door Control Switch) |
TROUBLESHOOTING PRECAUTION
NOTICE:
Click here
HINT:
When replacing the 4WD ECU assembly with a new one, it is not necessary to perform calibration.
"4WD CONTROL PREVENTION MODE" OR "VSC/TR(A)C/4WD CONTROL PREVENTION MODE" PROCEDURES FOR INSPECTION AND MAINTENANCE
NOTICE:
In the case of using a speedometer tester, brake tester, or chassis dynamometer, etc., there is some possibility of a speed differential between the front and rear wheels. Therefore, before performing the test, make sure to enter "4WD Control Prevention Mode" or "VSC/TR(A)C/4WD Control Prevention Mode".
(a) Entering and Canceling "4WD Control Prevention Mode" (When Using Techstream)
HINT:
The operation of the dynamic torque control AWD system can be prohibited by entering "4WD Control Prevention Mode".
(1) Enter "4WD Control Prevention Mode"
CAUTION:
When using a drum tester while in "4WD Control Prevention Mode", secure the vehicle with chains for safety.
NOTICE:
HINT:
Check that the AWD test mode message is displayed on the multi-information display.
Tester Display |
---|
4WD Control Prevention Mode |
(2) Cancel "4WD Control Prevention Mode"
NOTICE:
Do not turn the engine switch off within 60 seconds of entering "4WD Control Prevention Mode". If the engine switch is turned off within 60 seconds, "4WD Control Prevention Mode" will continue when the engine switch is turned on (IG) again.
HINT:
Check that the AWD test mode message is no longer displayed on the multi-information display.
(b) Entering and Canceling "VSC/TR(A)C/4WD Control Prevention Mode" (When not using Techstream)
HINT:
When entering "VSC/TR(A)C/4WD Control Prevention Mode" when not using the Techstream, operation of both the vehicle stability control system and the dynamic torque control AWD system is prohibited.
(1) Enter "VSC/TR(A)C/4WD Control Prevention Mode"
CAUTION:
When using a drum tester while in "VSC/TR(A)C/4WD Control Prevention Mode", secure the vehicle with chains for safety.
HINT:
(2) Cancel "VSC/TR(A)C/4WD Control Prevention Mode"
NOTICE:
Do not turn the engine switch off within 60 seconds of entering VSC/TR(A)C/4WD Control Prevention Mode". If the engine switch is turned off within 60 seconds, "VSC/TR(A)C/4WD Control Prevention Mode" will continue when the engine switch is turned on (IG) again.
HINT:
Check that the AWD test mode message and TRAC OFF message are not displayed on the multi-information display and that the VSC OFF indicator light is not illuminated.
Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Amplifier Antenna (w/o Rear No. 2 Seat): Components
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Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Sfi System: Brake Switch "B" Circuit Short to Battery (P070312)
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