Lexus NX: Terminals Of Ecu
TERMINALS OF ECU
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
| *1 | Main Body ECU (Multiplex Network Body ECU) | - | - |
(a) Measure the voltage and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| I48-1 (DIM) - Body ground | L - Body ground | High beam headlight drive output | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V | |||
| I48-8 (A) - Body ground | G - Body ground | Light control switch Auto position signal input | Light control switch in Auto position | Below 1 V |
| Light control switch not in Auto position | 11 to 14 V | |||
| I48-23 (AHBI) - Body ground | P - Body ground | Combination switch assembly (automatic high beam main switch) signal input | Combination switch assembly (automatic high beam main switch) on | Below 1 V |
| Combination switch assembly (automatic high beam main switch) off | 11 to 14 V | |||
| I48-24 (HU) - Body ground | Y - Body ground | Headlight dimmer switch high position signal input | Headlight dimmer switch in high position | Below 1 V |
| Headlight dimmer switch not in high position | 11 to 14 V | |||
| I48-19 (CLTB) - I48-21 (CLTE) | W - V | Automatic light control sensor power supply output | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V | |||
| I48-20 (CLTS) - Body ground | P - Body ground | Automatic light control sensor signal input | Power switch off | Below 1 V |
| Automatic light control system operating | Pulse generation (See waveform 1) |
(b) Waveform 1
| Item | Content |
|---|---|
| Terminal No. (Symbol) | I48-20 (CLTS) - Body ground |
| Tool Setting | 2 V/DIV., 10 ms./DIV. |
| Condition | Automatic light control system operating |
HINT:
The communication waveform changes according to the surrounding brightness.
CHECK FORWARD RECOGNITION CAMERA
Click here .gif)
READ NEXT:
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Automatic high beam system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfu
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 / Main Body / Trouble
Fail-safe Chart
FAIL-SAFE CHART AUTOMATIC HIGH BEAM SYSTEM (a) The main body ECU (multiplex network body ECU) operates in fail-safe mode if an abnormal condition such as those listed below has been detected. Item
SEE MORE:
Dtc Check / Clear
DTC CHECK / CLEAR DTC CHECK (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 / Vehicle Proximity Notification System / Trouble Codes. Body Electrical > Vehicle Proximity Notification System > T
Rear Axle Hub Bolt
ComponentsCOMPONENTS ILLUSTRATION *1 REAR AXLE HUB BOLT LH *2 REAR DISC *3 REAR DISC BRAKE CALIPER ASSEMBLY LH - - N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part ReplacementREPLACEMENT CAUTION / NOTICE / HINT NOTICE:
When the brake pedal is first
