Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) The DCM (telematics transceiver) control the vehicle safety connect system functions. Safety connect system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the safety connect system. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
CHECK INDICATOR
(a) When a malfunction is detected in the safety connect system, the manual (SOS) switch red indicator on the manual (SOS) switch illuminates to inform the driver of the malfunction.
Click here
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 ...
Terminals Of Ecu
TERMINALS OF ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition J157-1 (+B) - J157-20 (E) Y - W-B Power source (+B) Always 11 to 14 V ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Steps to take in
an emergency: If the vehicle becomes
stuck
Carry out the following procedures if the tires spin or the vehicle
becomes
stuck in mud, dirt or snow:
1. Stop the hybrid system. Shift the shift lever to P and set the parking
brake.
2. Remove the mud, snow or sand from around the front wheels.
3. Place wood, stones or some other material ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Mirror Control System (w/o Memory): Power Retractable Mirrors do not Operate with Power Retract Mirror Switch
DESCRIPTION The multiplex network master switch assembly sends the retractable outer mirror switch signal to the main body ECU (multiplex network body ECU) via LIN communication. The main body ECU (multiplex network body ECU) then sends the mirror retract/return signal to each outer mirror control E ...
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
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