Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Diagnosis System
DIAGNOSIS SYSTEM
FUNCTION OF WARNING INDICATOR AND MESSAGE
(a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message is displayed on the multi-information display.
| *a | PCS Warning Light |
| PCS warning light | Warning Message | Detail | DTC/RoB |
|---|---|---|---|
| Illuminates | "Pre-Collision System Malfunction Visit Your Dealer" | Pre-collision system malfunctioning | Stored |
| Illuminates | "Pre-Collision System Unavailable" |
| Stored |
| Illuminates | "Pre-Collision System Unavailable Clean Sensor" | Foreign matter attached to millimeter wave radar sensor assembly | Stored |
| Illuminates | "Front Camera Unavailable" |
| Stored |
| Illuminates | "Front Camera Unavailable See Owner's Manual" | Front of forward recognition camera or windshield glass is dirty or fogged | Stored |
| Illuminates | "VSC Turned Off Pre-Collision Brake System Unavailable" | VSC system is disabled | Not stored |
| PCS Warning Light | Condition |
|---|---|
| Illuminates | Pre-collision system malfunctioning (DTC stored) |
| Pre-collision system temporarily disabled | |
| Pre-collision system disabled | |
| VSC system disabled | |
| Not illuminated | Other |
INITIAL CHECK
(a) An initial check is performed when the engine switch is off for more than 2 seconds and then turned on (IG). The initial check consists of a pre-collision system diagnostic check with a duration of approximately 3 seconds.
(b) If a malfunction is detected during the initial check, the PCS warning light in the combination meter assembly will illuminate and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.
CONSTANT CHECK
(a) The forward recognition camera constantly monitors the pre-collision system for malfunctions after the engine switch is turned on (IG) and the initial check (approximately 3 seconds) has completed.
(b) If a malfunction is detected during the constant check, the PCS warning light in the combination meter assembly will illuminate and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Inspect the fuses and relays related to this system before inspecting the suspected areas below. Pre-Collision System Symptom Suspected Area Link "VSC Turned OF ...
Terminals Of Ecu
TERMINALS OF ECU NOTICE:
DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
D ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Dynamic Torque Control Awd System: Engine Circuit Malfunction (C1280)
DESCRIPTION If a malfunction in the ECM circuit is detected, the 4WD ECU assembly stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area C1280 Engine Circuit Malfunction When the following continues for 5 seconds or more:
Communication with engine control EC ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Engine Unit: Inspection
INSPECTION PROCEDURE 1. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY (a) Turn the roller by hand to check that it turns smoothly. HINT: If the roller does not turn smoothly, replace the No. 1 valve rocker arm sub-assembly. 2. INSPECT VALVE LASH ADJUSTER ASSEMBLY NOTICE:
Keep the val ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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