Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Terminals Of Ecu
TERMINALS OF ECU
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
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| *A | w/o Seat Heater System | *B | w/ Seat Heater System |
(a) Disconnect the J43 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J43-2 (IG+) - J43-4 (GND) | GR - W-B | Power source (IG) | Engine switch on (IG) | 11 to 14 V |
| J43-2 (IG+) - J43-4 (GND) | GR - W-B | Power source (IG) | Engine switch off | Below 1 V |
| J43-1 (B) - J43-4 (GND) | R - W-B | Battery power supply | Always | 11 to 14 V |
| J43-4 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
(c) Reconnect the J43 air conditioning amplifier assembly connector.
(d) Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J43-17 (FDEF) - J43-4 (GND) | W - W-B | Wiper Deicer signal | Engine switch on (IG), Front wiper deicer switch off | 11 to 14 V |
| J43-17 (FDEF) - J43-4 (GND) | W - W-B | Wiper Deicer signal | Engine switch on (IG), Front wiper deicer switch on | Below 2.2 V |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
If the battery voltage is low, the seat heater system may not operate. When "Operation of Electrical Items Restricted." is not displayed on the multi-information disp ...
Data List / Active Test
DATA LIST / ACTIVE TEST ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive func ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning Pressure Sensor: Removal
REMOVAL PROCEDURE 1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM Click here 2. REMOVE AIR CONDITIONER PRESSURE SENSOR (a) Disconnect the connector. (b) Using a 27 mm deep socket wrench, remove the air conditioner pressure sensor as shown in the illustration. NOTICE: Seal the opening of the ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Seat Assembly (for 60/40 Split Seat Type Rh Side): Installation
INSTALLATION CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the seat frame may injure your hands. PROCEDURE 1. INSTALL REAR SEAT ASSEMBLY RH (a) Place the rear seat assembly RH in the cabin. NOTICE: Be careful not to damage the vehicle body. (b) Lift the seat track adjusting ...
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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