PRECAUTION
CAUTION REGARDING INTERFERENCE WITH ELECTRONIC DEVICES
CAUTION:
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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 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) |
PRECAUTION WHEN USING TECHSTREAM
(a) When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
PRECAUTION FOR REGISTRATION
(a) If replacing any of the following parts, refer to registration procedure.
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(1) Certification ECU (smart key ECU assembly)
(2) Steering lock ECU (steering lock actuator or upper bracket assembly)
(3) ECM
(4) Electrical key transmitter sub-assembly
(5) ID code box (immobiliser code ECU)
(6) Main body ECU (multiplex network body ECU)
(7) DCM (telematics transceiver)*
(b) When the certification ECU (smart key ECU assembly) is replaced, the stored steering lock position will no longer match that of the steering lock ECU (steering lock actuator or upper bracket assembly) and it may not be possible to start the engine. Therefore, after replacement, perform the following procedure.
(1) Move the shift lever to P.
(2) With the engine switch off, open and close a door, and then start the engine.
Parts LocationLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Sending Malfunction (Navigation to APGS) (U0073,U0100,U0129,U0140,U0155,U0164,U023B,U0265,U1110)
DESCRIPTION These DTCs are stored when a malfunction occurs in the CAN communication circuit. DTC No. Detection Item DTC Detection Condition Trouble Area U0073 Sending Malfunction (Navigation to APGS) CAN bus connection error CAN communication system U0100 Engine ECU Communi ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 22 (CA2H) of the network gateway ECU and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the network gateway ECU and terminal 16 (BAT) of the DLC3. Symptom Troubl ...