Lexus NX: Power Switch Illumination Circuit
DESCRIPTION
The illuminated entry system controls the power switch illumination.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
- If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
PROCEDURE
| 1. | PERFORM ACTIVE TEST USING TECHSTREAM (POWER/ENGINE SW LIGHT) |
(a) Using the GTS, perform the Active Test.
Click here .gif)
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Power/Engine SW Light | Power switch illumination | ON or OFF | - |
| Tester Display |
|---|
| Power/Engine SW Light |
OK:
Power switch illumination illuminates.
| Power switch illumination illuminates | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
.gif)
| 2. | INSPECT POWER SWITCH |
(a) Remove the power switch.
Click here
(b) Inspect the power switch.
Click here
| NG | | REPLACE POWER SWITCH |
|
| 3. | CHECK HARNESS AND CONNECTOR (POWER SWITCH - CERTIFICATION ECU [SMART KEY ECU ASSEMBLY]) |
(a) Disconnect the I16 power switch connector.
(b) Disconnect the I53 certification ECU (smart key ECU assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I16-9 (SWIL) - I53-17 (SWIL) | Always | Below 1 Ω |
| I16-6 (AGND) - I53-12 (AGND) | Always | Below 1 Ω |
| I16-9 (SWIL) or I53-17 (SWIL) - Body ground | Always | 10 kΩ or higher |
| I16-6 (AGND) or I53-12 (AGND) - Body ground | Always | 10 kΩ or higher |
| OK | | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Door Unlock Detection Switch Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Recognition code registration
Luggage Compartment Room Light
ComponentsCOMPONENTS ILLUSTRATION *1 NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - - RemovalREMOVAL PROCEDURE 1. REMOVE NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY (for LH Side) (a) Put prote
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 TONNEAU COVER ASSEMBLY - - ILLUSTRATION *1 DECK BOARD ASSEMBLY *2 DECK FLOOR BOX LH *3 NO. 3 DECK BOARD SUB-ASSEMBLY - - ILLUSTRATION *1 NEGATIVE AUXILIARY BATTERY TERMINAL - - N*m (kgf*cm, ft.*lbf): Specified torque -
Initialization
INITIALIZATION NOTICE:
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during headlight ECU sub-assembly LH removal/installation are shown below. Performed Work or System Condition Ne
