Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Terminals Of Ecu
TERMINALS OF ECU
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
| *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 and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J43-5 (RDFG) - J43-4 (GND) | P - W-B | Rear window defogger signal | Engine switch on (IG), rear window defogger switch off | 11 to 14 V |
| J43-5 (RDFG) - J43-4 (GND) | P - W-B | Rear window defogger signal | Engine switch on (IG), rear window defogger switch on | Below 2.2 V |
CHECK RADIO RECEIVER ASSEMBLY
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: If the battery voltage is low, the window defogger system may not operate. When "Operation of Electrical Items Restricted." is not displayed on the multi-information dis ...
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) 2016-2026 Repair Manual > Automatic Transaxle System: Pressure Control Solenoid "G" Actuator Stuck Off (P28077F)
DESCRIPTION Based on signals from the transmission revolution sensors (NT, NC3 and NC), the actual gear is detected. The ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical malfunction of the shift solenoid valves, transmission valve body assembly and automati ...
Lexus RX (RX 350L, RX450h) 2016-2026 Owners Manual > Intelligent Clearance Sonar
(ICS): Rear Cross Traffic Auto Brake function (if equipped)
If the Rear Cross Traffic Auto Brake function detects that a collision with
an
approaching vehicle is possible, the hybrid system output will be restricted to
restrain any increase in vehicle speed. (Hybrid system output restriction
control:
See A below.)
Additionally, if the accelerator ped ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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