Lexus NX: Terminals Of Ecu
TERMINALS OF ECU
BLIND SPOT MONITOR SENSOR LH (MASTER)
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| V1-3 (BIND) - V1-10 (BLGD) | B - W-B | Blind spot monitor main switch (combination switch assembly) indicator signal | Power switch on (IG), blind spot monitor main switch (combination switch assembly) on | 11 to 14 V |
| Power switch on (IG), blind spot monitor main switch (combination switch assembly) off | Below 1 V | |||
| V1-4 (OMIL) - V1-10 (BLGD) | V - W-B | Outer rear view mirror indicator LH power source signal | Outer rear view mirror indicator LH illuminated | 3.5 to 9.5 V |
| Outer rear view mirror indicator LH blinks | Alternating between 0 to 9.5 V | |||
| Outer rear view mirror indicator LH not illuminated | Below 1 V | |||
| V1-5 (BLB) - V1-10 (BLGD) | B - W-B | IG power source signal | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V | |||
| V1-8 (BSSW) - V1-10 (BLGD) | W - W-B | Blind spot monitor main switch (combination switch assembly) indicator signal | Power switch on (IG), blind spot monitor main switch (combination switch assembly) on | 11 to 14 V |
| Power switch on (IG), blind spot monitor main switch (combination switch assembly) off | Below 1 V | |||
| V1-10 (BLGD) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
BLIND SPOT MONITOR SENSOR RH (SLAVE)
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| X1-3 (BUZ) - X1-10 (BRGD) | G - W-B | RCTA buzzer (blind spot monitor buzzer) operation signal | RCTA buzzer (blind spot monitor buzzer) not sounding | 11 to 14 V |
| RCTA buzzer (blind spot monitor buzzer) sounding | Alternating between 0 to 14 V | |||
| X1-4 (OMIR) - X1-10 (BRGD) | V - W-B | Outer rear view mirror indicator RH power source signal | Outer rear view mirror indicator RH illuminated | 3.5 to 9.5 V |
| Outer rear view mirror indicator RH blinks | Alternating between 0 to 9.5 V | |||
| Outer rear view mirror indicator RH not illuminated | Below 1 V | |||
| X1-5 (BRB) - X1-10 (BRGD) | P - W-B | IG power source signal | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V | |||
| X1-10 (BRGD) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
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Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Blind spot monitor 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 malfunctionin
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 blind spot monitor main switch (combination switch assembly) on. (d) Turn the Techst
Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever a DTC is detected, the blind spot monitor sensor stores the current vehicle (sensor) state as Freeze Frame Data. CHECK FREEZE FRAME DATA (a) Connect th
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Seat Heater Switch Circuit
DESCRIPTION When the refreshing seat switch is operated, the air conditioning amplifier assembly receives the signal via the LIN communication line, and operates the seat heater for the corresponding rear seat. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
If the auxiliary battery voltage is l
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The following procedure is for the LH side.
NOTICE:
While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or the
