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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Rear Motor High-voltage Circuit
DESCRIPTION The cause of this malfunction may be the high-voltage circuit of the rear motor. Check the rear motor internal resistance and the connection condition of the high-voltage line between the inverter and rear motor to check whether there is an open or short circuit. Related Parts Check A
