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:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
The back door closer system troubleshooting procedure is based on the premise that the power back door system is operating normally. Check the power back door system first before troubleshooting the back door closer system.
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Use the following procedure
Generator Temperature Sensor Circuit Low (P0A38-257,P0A39-259)
DESCRIPTION Refer to the description for DTC P0A37-260. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0A38-257 Generator Temperature Sensor Circuit Low Short to ground in the generator temperature sensor circuit (1 trip detection
