Lexus NX: Terminals Of Ecu
Lexus NX Service Manual / Vehicle Interior / Pre-collision / Pre-collision System / Terminals Of Ecu
TERMINALS OF ECU
CHECK FORWARD RECOGNITION CAMERA
NOTICE:
- DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
- Do not apply larger loads than necessary since the connector may be damaged.
(a) Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| T18-7 (IGB) - T18-10 (GND) | GR - W-B | Power source | Power switch on (IG) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| T18-10 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY
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Diagnosis System
DIAGNOSIS SYSTEM FUNCTION OF WARNING INDICATOR AND MESSAGE (a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message displayed on
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Pre-Collision System
Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) When a pre-collision system DTC is stored, the forward recognition camera stores the current vehicle (ECU or sensor) state as Freeze Frame Data. CHECK FREEZE FRAME DA
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE 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 o
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION NOTICE:
When using the Techstream with the power switch off to confirm DTCs or Data List information related to the smart access system with push button start, the Techstream may not operate unless either of the following is performed: 1) Turn a courtesy light switch
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