Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) The diagnosis function turns off the cruise control indicator, illuminates the master warning light and displays a warning message when a malfunction is detected. When a malfunction is detected in the dynamic radar cruise control system, DTCs are stored in the ECM or forward recognition camera.
| *a | Cruise Control Indicator (Constant Speed Control Mode) |
| *b | Cruise Control Indicator (Vehicle-to-vehicle Distance Control Mode) |
| *c | Master Warning Light |
NOTICE:
As data stored in the ECU will be cleared, do not remove any fuses or disconnect the cable from the negative (-) battery terminal before the inspection is complete.
HINT:
When the system returns to normal, the warning message "Cruise Control Malfunction Visit Your Dealer" displayed on the multi-information display will be cleared.
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Before replacing the ECM, refer to Registration.
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When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a mill ...
Terminals Of Ecu
TERMINALS OF ECU CHECK ECM HINT: As a waterproof connector is used for the ECM, voltage, resistance and waveform inspections cannot be performed. The voltage, resistance and waveform values are provi ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Power Seat Control System(for Second Row): Rear Door Courtesy Switch Circuit
DESCRIPTION HINT: The rear door courtesy light switch is a collective term for the rear door courtesy light switch (for RH) and the rear door courtesy light switch (for LH). The fold seat control ECU receives switch operation signals, the driving condition signal and rear door courtesy light switch ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Light Control Sensor: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (a) Disconnect the K3 automatic light control sensor connector. *a Front view of wire harness connector (to Automatic Light Control Sensor) (b) Measure the voltage and resistance on the wire harness ...
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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