Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Terminals Of Ecu
TERMINALS OF ECU
STEERING WHEEL HEATER CONTROL ASSEMBLY
HINT:
Perform the inspection from the harness side with the connectors connected.
(a) Measure the voltage or resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| A-4 (IG) - Body ground | IG power supply | Engine switch on (IG) | 11 to 14 V |
| A-3 (SW) - Body ground | Steering heater switch (Integration control&panel assembly) input signal | Engine switch on (IG), Steering heater switch (Integration control&panel assembly) pressed and held | 11 to 14 V |
| A-2 (LED) - Body ground | LED output signal | Engine switch on (IG), Heated steering wheel system operating | Below 3 V |
| A-1 (GND) - Body ground | Ground | Always | Below 1 Ω |
| B-5 (SH1) - Body ground | Heater output signal | Engine switch on (IG), Heated steering wheel system operating | 11 to 14 V*1 |
| B-3 (TH1) - Body ground | Thermistor input signal | Engine switch on (IG), Heated steering wheel system operating on at 0 to 40°C (32 to 104°F) | 2.5 to 4.8 V*2 |
| B-2 (TH2) - Body ground | Thermistor ground | Engine switch on (IG), Heated steering wheel system operating | Below 1 V |
| B-1 (SH2) - Body ground | Heater ground | Engine switch on (IG), Heated steering wheel system operating | Below 1 V |
HINT:
- *1: The current to the heater turns ON/OFF depending on the temperature of the thermistor. As a result, it may take several minutes before a voltage value is output.
- *2: When ambient temperature is 0 to 40°C (32 to 104°F).
System Diagram
SYSTEM DIAGRAM SYSTEM DIAGRAM ...
Multiplex Tilt And Telescopic Ecu
ComponentsCOMPONENTS ILLUSTRATION *1 LOWER STEERING COLUMN COVER *2 MULTIPLEX TILT AND TELESCOPIC ECU N*m (kgf*cm, ft.*lbf): Specified torque - - InstallationINSTALLATION PROCE ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Oil Pump: Reassembly
REASSEMBLY PROCEDURE 1. INSTALL FRONT OIL PUMP OIL SEAL (a) Using SST and a hammer, install a new front oil pump oil seal to the front oil pump body sub-assembly. SST: 09350-32014 09351-32140 Standard Depth: -0.2 to 0.2 mm (-0.00787 to 0.00787 in.) *a Depth (b) Coat the l ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Shift Lever: Removal
REMOVAL PROCEDURE 1. SECURE VEHICLE (a) Fully apply the parking brake and chock a wheel. CAUTION:
Make sure to apply the parking brake and chock a wheel before performing this procedure.
If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, possibly resu ...
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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