Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: IG Power Source Circuit
DESCRIPTION
Power source voltage is supplied to the air conditioning amplifier assembly when the engine switch is turned on (IG). This power is used for operating the air conditioning amplifier assembly, servo motors, etc.
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 (AIR CONDITIONING AMPLIFIER ASSEMBLY - IG POWER SOURCE) |
(a) Disconnect the J43 air conditioning amplifier assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J43-2 (IG+) - Body ground | Engine switch off | Below 1 V |
| J43-2 (IG+) - Body ground | Engine switch on (IG) | 11 to 14 V |
| NG | .gif) | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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| 2. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J43-4 (GND) - Body ground | Always | Below 1 Ω |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
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| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
ECO Switch Circuit
DESCRIPTION When the combination switch assembly (ECO mode switch) is turned on, the air conditioning amplifier assembly receives a combination switch assembly (ECO mode switch) ON signal and controls ...
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Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Do-it-yourself
maintenance: 12-volt battery
Location
RX450h
The 12-volt battery is located in the
left-hand side of luggage compartment.
RX450hL
The 12-volt battery is located in the
left-hand side of luggage compartment.
Removing the 12-volt battery cover
RX450h
1. Lift the deck board and attach the hook.
2. Remove the cover af ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Vehicle specifications
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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