Lexus NX: Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FRONT WIPER DEICER RELAY
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the front wiper deicer relay. |
|
2. INSPECT DEFOGGER RELAY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 3 - 4 | Auxiliary battery voltage is not applied between terminals 1 and 2 | Below 1 Ω |
| Auxiliary battery voltage is applied between terminals 1 and 2 | 10 kΩ or higher | |
| 3 - 5 | Auxiliary battery voltage is not applied between terminals 1 and 2 | 10 kΩ or higher |
| Auxiliary battery voltage is applied between terminals 1 and 2 | Below 1 Ω | |
| 4 - 5 | Always | 10 kΩ or higher |
If the result is not as specified, replace the defogger relay.
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Parts Location
PARTS LOCATION ILLUSTRATION *1 AIR CONDITIONING CONTROL ASSEMBLY - REAR WINDOW DEFOGGER SWITCH *2 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-IG NO.1 FUSE - ECU-IG NO.3 FUSE *3 DLC3
System Diagram
SYSTEM DIAGRAM Communication Table Transmitter Receiver Signal Communication Method Air Conditioning Control Assembly Air Conditioning Amplifier Assembly Rear window defogger switch
SEE MORE:
High Beam Headlight Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) controls the high beam headlights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
Recognition code registration is necessary when replacin
"No GPS signal" mark is displayed
CAUTION / NOTICE / HINT NOTICE: When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
A communication malfunction DTC may be stored.
The radio receiver assembly may not
