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Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension Control >> Air Suspension System >> Terminals Of Ecu

Terminals Of Ecu

HINT:

Inspect the connectors from the back side while the connectors are connected.

  1. CHECK SUSPENSION CONTROL ECU 
    Fig 1: Identifying Suspension Control ECU Connectors
    G04944116Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
SUSPENSION CONTROL ECU

Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
L88-1 (B) - L88-4 (GND) W-W-B IG power supply Engine switch on (IG) 10 to 14 V
L88-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
L88-5 (SLEX) - L88-4 (GND) L-W-B Exhaust valve Engine switch on (IG) Below 1 V
Engine idling, height control switch from "HEIGHT HIGH" to normal 8 V or more
L88-6 (RC) - L88-4 (GND) O-W-B Suspension control relay Engine switch on (IG) Below 1 V
Engine idling, height control switch from normal to "HEIGHT HIGH" during compressor operation 8 V or more
L88-7(CA1H)-L88-8 (CA1L) B-W CAN communication line Engine switch off 54 to 69 Ω
L88-14 (TD) - L88-4 (GND) O-W-B Height control is not operating Engine switch on (IG) 10 to 14 V
L88-16(SLFR)-L88-4 (GND) R-W-B Height control valve (for Front RH) Engine switch on (IG) Below 1 V
Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse 8 V or more
L88-17(SLFL)-L88-4 (GND) W-W-B Height control valve (for Front LH) Engine switch on (IG) Below 1 V
Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse 8 V or more
L88-18(SBL1)-L88-4 (GND) R-W-B Height control sensor power source (for Front LH) Engine switch on (IG) 4.5 to 5.5 V
L88-20(SBR1)-L88-4 (GND) V-W-B Height control sensor power source (for Front RH) Engine switch on (IG) 4.5 to 5.5 V
L88-21 (SGR1)-L88-4 (GND) R-W-B Height control sensor ground (for Front RH) Always Below 1 Ω
L88-22(SGL1)-L88-4 (GND) LG - W-B Height control sensor ground (for Front LH) Always Below 1 Ω
L88-25 (SLRL) - L88-4 (GND) G-W-B Height control valve (for Rear LH) Engine switch on (IG) Below 1 V
L88-25 (SLRL) - L88-4 (GND) G-W-B Height control valve (for Rear LH) Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse 8 V or more
L88-26 (SLRR) - L88-4 (GND) Y-W-B Height control valve (for Rear RH) Engine switch on (IG) Below 1 V
Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse 8 V or more
A39-3 (FBR+) - L88-4 (GND) R-W-B Suspension control actuator (for Front RH) Engine switch off 12.0 to 12.8 Ω
A39-4 (FBR-) - L88-4 (GND) LG - W-B Suspension control actuator (for Front RH) Engine switch off 12.0 to 12.8 Ω
A39-9 (FAR+) - L88-4 (GND) O-W-B Suspension control actuator (for Front RH) Engine switch off 12.0 to 12.8 Ω
A39-11 (FAR-)-L88-4 (GND) R-W-B Suspension control actuator (for Front RH) Engine switch off 12.0 to 12.8 Ω
A39-13(FAL+)-L88-4 (GND) L-W-B Suspension control actuator (for Front LH) Engine switch off 12.0 to 12.8 Ω
A39-14 (FAL-) - L88-4 (GND) R-W-B Suspension control actuator (for Front LH) Engine switch off 12.0 to 12.8 Ω
A39-15(FBL+)-L88-4 (GND) W-W-B Suspension control actuator (for Front LH) Engine switch off 12.0 to 12.8 Ω
A39-16(FBL-)-L88-4 (GND) O-W-B Suspension control actuator (for Front LH) Engine switch off 12.0 to 12.8 Ω
A39-17(RM+)-L88-4 (GND) Y-W-B Motor lock (+) Engine idling, height; control switch from normal to "HEIGHT HIGH" during compressor operation Below 1 V
Engine idling, height control compressor not operating 8 V OR higher
A39-18(RM-)-L88-4 (GND) B-W-B Motor lock (-) Always Below 1 Ω
A39-19(SHR2)-L88-4 (GND) LG - W-B Height control sensor (for rear LH) Engine switch on (IG) 0.5 to 4.5 V
Engine switch on (IG) Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal Approx. 2.5 V
A39-20 (SHFR) - L88-4 (GND) B-W-B Height control sensor (for Front RH) Engine switch on (IG) 0.5 to 4.5 V
Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal Approx. 2.5 V
A39-21 (SHF2) - L88-4 (GND) L-W-B Height control sensor (for Front LH) Engine switch on (IG) 0.5 to 4.5 V
Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal Approx. 2.5 V
A39-22 (SHFL) - L88-4 (GND) L-W-B Height control sensor (for Front LH) Engine switch on (IG) 0.5 to 4.5 V
Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal Approx. 2.5 V
A39-23 (SBL3) - L88-4 (GND) BR - W-B Height control sensor power source (for AFS ECU) Engine switch on (IG) 4.5 to 5.5 V
A39-24 (SGL3) - L88-4 (GND) GR - W-B Height control sensor ground (for AFS ECU) Always Below 1 Ω
R1-3(RAR-)-L88-4 (GND) G-W-B Suspension control actuator (for Rear RH) Engine switch off 12.0 to 12.8 Ω
R1-4(RBR+)-L88-4 (GND) LG - W-B Suspension control actuator (for Rear RH) Engine switch off 12.0 to 12.8 Ω
R1-5(RBR-)-L88-4 (GND) P-W-B Suspension control actuator (for Rear RH) Engine switch off 12.0 to 12.8 Ω
R1-6(RAL+)-L88-4 (GND) L-W-B Suspension control actuator (for Rear LH) Engine switch off 12.0 to 12.8 Ω
R1-7(RAL-)-L88-4 (GND) G-W-B Suspension control actuator (for Rear LH) Engine switch off 12.0 to 12.8 Ω
R1-8(RBL+)-L88-4 (GND) O-W-B Suspension control actuator (for Rear LH) Engine switch off 12.0 to 12.8 Ω
R1-11(SGFL)-L88-4 (GND) L-W-B Acceleration sensor (for Front LH) Engine switch on (IG), keep the vehicle still without any vertical movement for 1 second Approx. 2.5 V
R1-12(SGR3)-L88-4 (GND) LG - W-B Acceleration sensor ground (for Rear) Always Below 1 Ω
R1-13(RAR+)-L88-4 (GND) Y-W-B Suspension control actuator (for Rear RH) Engine switch off 12.0 to 12.8 Ω
R1-15(SBR3)-L88-4 (GND) O-W-B Acceleration sensor power source (for Rear) Engine switch on (IG) 4.5 to 5.5 V
R1-16(SBL)-L88-4 (GND) R-W-B Acceleration sensor power source (for Front LH) Engine switch on (IG) 4.5 to 5.5 V
R1-20(RBL-)-L88-4 (GND) BR - W-B Suspension control actuator (for Rear LH) Engine switch off 12.0 to 12.8 Ω
R1-21 (CA2L)-R1-22 (CA2H) W-B CAN communication line Engine switch off 54 to 69 Ω
R1-23(SGL2)-L88-4 (GND) GR - W-B Height control sensor ground (for Rear LH) Always Below 1 Ω
R1-24(SBL2)-L88-4 (GND) BR - W-B Height control sensor power source (for Rear LH) Engine switch on (IG) 4.5 to 5.5 V
R1-25 (SGR2) - L88-4 (GND) V-W-B Height control sensor ground (for Rear RH) Always Below 1 Ω
R1-26 (SBR2) - L88-4 (GND) B-W-B Height control sensor power source (for Rear RH) Engine switch on (IG) 4.5 to 5.5 V
R1-27(SGRR)-L88-4 (GND) BR - W-B Acceleration sensor (for Rear) Engine switch on (IG), keep the vehicle still without any vertical movement for 1 second Approx. 2.5 V
R1-28(SHRR)-L88-4 (GND) P-W-B Height control sensor (for Rear RH) Engine switch on (IG) 0.5 to 4.5 V
Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal Approx. 2.5 V
R1-29(SGL)-L88-4 (GND) V-W-B Acceleration sensor ground (for Front LH) Always Below 1 Ω
R1-30(SHRL)-L88-4 (GND) LG - W-B Height control sensor (for Rear LH) Engine switch on (IG) 0.5 to 4.5 V
Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal Approx. 2.5 V