Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Clearance Warning ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the clearance warning ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY POWER SOURCE) |
(a) Disconnect the J38 clearance warning ECU assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J38-1 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
| J38-1 (IG) - Body ground | Engine switch off | Below 1 V |
| NG |  | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 2. | CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J38-30 (E) - Body ground | Always | Below 1 Ω |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
No. 1 Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that ...
No. 2 Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 2 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Trip Switch: Inspection
INSPECTION PROCEDURE 1. INSPECT TRIP SWITCH (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 5 (RV) - 7 (E) Light control rheostat up switch pressed Below 1 Ω Light control rheostat u ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Pressure Control Solenoid "B" Circuit Open (P077513)
DESCRIPTION Changing gears is performed by the ECM turning the shift solenoid valves SL1, SL2, SL3, SL4 and SL5 on and off. If an open or short occurs in any of the shift solenoid valve circuits, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be driven. If all of ...
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
0.0162