Lexus NX: Terminals Of Ecu
TERMINALS OF ECU
AIRBAG ECU ASSEMBLY
| Terminal No. | Terminal Symbol | Destination |
|---|---|---|
| I58-1 | P2+ | Instrument panel passenger airbag assembly (Front passenger side squib 2nd step) |
| I58-2 | P2- | Instrument panel passenger airbag assembly (Front passenger side squib 2nd step) |
| I58-3 | P- | Instrument panel passenger airbag assembly |
| I58-4 | P+ | Instrument panel passenger airbag assembly |
| I58-5 | D+ | Horn button assembly |
| I58-6 | D- | Horn button assembly |
| I58-7 | D2- | Horn button assembly (Driver side squib 2nd step) |
| I58-8 | D2+ | Horn button assembly (Driver side squib 2nd step) |
| I58-9 | DK+ | Lower No. 1 instrument panel airbag assembly |
| I58-10 | DK- | Lower No. 1 instrument panel airbag assembly |
| I58-13 | CANH | CAN communication line |
| I58-14 | GSW2 | Hybrid vehicle control ECU |
| I58-17 | P-AB | Passenger airbag ON/OFF indicator |
| I58-18 | GSW | Main body ECU (Multiplex network body ECU) |
| I58-21 | IG2 | A/BAG fuse |
| I58-22 | CANL | CAN communication line |
| I58-23 | PAON | Passenger airbag ON/OFF indicator |
| I58-24 | GSW3 | DCM (Telematics transceiver) |
| I58-25 | E1 | Ground |
| I58-26 | E2 | Ground |
| I58-27 | -SR | Front airbag sensor RH |
| I58-28 | -SL | Front airbag sensor LH |
| I58-29 | +SR | Front airbag sensor RH |
| I58-30 | +SL | Front airbag sensor LH |
| Q23-3 | PL- | Front seat outer belt assembly LH |
| Q23-4 | PL+ | Front seat outer belt assembly LH |
| Q23-7 | SFL- | Front seat airbag assembly LH |
| Q23-8 | SFL+ | Front seat airbag assembly LH |
| Q23-13 | ICL+ | Curtain shield airbag assembly LH |
| Q23-14 | ICL- | Curtain shield airbag assembly LH |
| Q23-15 | LBE+ | Front seat inner belt assembly LH |
| Q23-16 | LSP+ | Seat position airbag sensor |
| Q23-17 | BBL+ | Side airbag sensor assembly LH |
| Q23-18 | BBL- | Side airbag sensor assembly LH |
| Q23-23 | LBE- | Front seat inner belt assembly LH |
| Q23-24 | LSP- | Seat position airbag sensor |
| P23-1 | SFR+ | Front seat airbag assembly RH |
| P23-2 | SFR- | Front seat airbag assembly RH |
| P23-5 | PR+ | Front seat outer belt assembly RH (Front pretensioner) |
| P23-6 | PR- | Front seat outer belt assembly RH (Front pretensioner) |
| P23-9 | FSR+ | Occupant detection ECU |
| P23-11 | ICR- | Curtain shield airbag assembly RH |
| P23-12 | ICR+ | Curtain shield airbag assembly RH |
| P23-13 | FCP+ | Front seat cushion airbag assembly RH |
| P23-14 | FCP- | Front seat cushion airbag assembly RH |
| P23-15 | PR2- | Front seat outer belt assembly RH (Selectable force limiter) |
| P23-16 | PR2+ | Front seat outer belt assembly RH (Selectable force limiter) |
| P23-17 | FSR- | Occupant detection ECU |
| P23-23 | BBR- | Side airbag sensor assembly RH |
| P23-24 | BBR+ | Side airbag sensor assembly RH |
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Diagnosis System
DIAGNOSIS SYSTEM SYMPTOM SIMULATION HINT: The most difficult case in troubleshooting is when no problem symptoms occur. In such a case, a thorough problem analysis must be carried out. A simulation of
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Body El
Check Mode Procedure
CHECK MODE PROCEDURE NOTICE: Enter "Signal Check" from the "DTC Check" screen displayed on the Techstream to clear the output DTCs (both present and past). HINT:
DTCs can be stored more sensitively
SEE MORE:
Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which
Operation Check
OPERATION CHECK INSPECT INDICATOR/WARNING LIGHT (a) Check the following indicators and warning lights. Indicator/Warning Light Switch Condition Specified Condition
*1: w/ Pre-collision System
*2: w/ Automatic High Beam System Brake warning light Power switch off → on (IG) Comes
