Lexus NX: Terminals Of Ecu
Lexus NX Service Manual / Engine & Hybrid System / Cruise Control / Front Camera 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) - Body ground | LA-P - Body ground | Power source | Power switch on (IG) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| T18-1 (HTR) - Body ground | B - Body ground | Forward recognition with heater hood sub-assembly operation signal | Power switch on (IG), forward recognition with heater hood sub-assembly not operating | 11 to 14 V |
| Power switch on (IG), forward recognition with heater hood sub-assembly operating | Below 1 V | |||
| T18-10 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
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Diagnosis System
DIAGNOSIS SYSTEM DIAGNOSIS FUNCTION (a) The front camera system does not have a notification function such as a warning light when a DTC is detected. When a malfunction occurs, it stores a DTC and sen
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: Chassis / Front Recognition Camera / T
Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) When a front camera system DTC is stored, the forward recognition camera stores the current vehicle (ECU or sensor) state as Freeze Frame Data. CHECK FREEZE FRAME DAT
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Parts Location
PARTS LOCATION ILLUSTRATION *1 COOLING FAN RELAY (FAN NO. 1) *2 COOLING FAN ECU *3 COOLING FAN MOTOR *4 CRANKSHAFT POSITION SENSOR *5 ECM *6 NO. 2 ENGINE ROOM RELAY BLOCK - FAN FUSE *7 NO. 2 COOLING FAN MOTOR *8 INSTRUMENT PANEL JUNCTION BLOCK - ECU-IG NO. 4 F
Speaker Circuit
DESCRIPTION If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers. As a result, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)* or
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