Lexus NX: Terminals Of Ecu
TERMINALS OF ECU
CHECK VEHICLE APPROACHING SPEAKER CONTROLLER
(a) Disconnect the A80 vehicle approaching speaker controller connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A80-1 (IG) - Body ground | L - Body ground | IG power supply | Power switch on (IG) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| A80-6 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
(c) Connect the A80 vehicle approaching speaker controller connector.
(d) Measure the check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A80-7 (SP+) - A80-8 (SP-) | L - B | Vehicle approaching speaker output | Vehicle approaching speaker operating | A waveform synchronized with the sound is output. (See Waveform 1) |
| A80-3 (CANH) - A80-6 (GND) | V - W-B | CAN communication line | Power switch on (IG) | Pulse generation |
| A80-4 (CANL) - A80-6 (GND) | W - W-B | CAN communication line | Power switch on (IG) | Pulse generation |
(1) Waveform 1
| Item | Condition |
|---|---|
| Tester Connection | A80-7 (SP+) - A80-8 (SP-) |
| Tool Setting | 1 V/DIV., 500 ms./DIV. |
| Condition | Vehicle approaching speaker operating |
READ NEXT:
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 No
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Vehicle Proximity Notification System DTC No. Detection Item Link B1350 Speaker Circuit U0129 Lost Communication with Brake System Control Module
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 NO. 3 DECK BOARD SUB-ASSEMBLY *3 REAR DECK FLOOR BOX *4 AUXILIARY BATTERY NEGATIVE TERMINAL N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *1 COWL SIDE TRIM BOARD LH *2 DOOR SCUFF PLATE ASSEMBLY LH
Driver Side Door Entry Lock Function does not Operate
DESCRIPTION If the entry lock function does not operate for the driver door only, but the entry unlock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the lock sensor (connection between the certification ECU (sm
