ACTIVE HEIGHT CONTROL SUSPENSION TERMINALS OF ECU


  1. CHECK SUSPENSION CONTROL ECU

    Tech Tips

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

    A01WRQNE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    K32-1 (SLB) - K30-1 (GND) R - W-B No. 1 height control valve assembly and front suspension control valve power supply Engine running 9 to 14 V
    K32-2 (FBL+) - K30-1 (GND) R - W-B Front damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K32-3 (FAL-) - K30-1 (GND) L - W-B Front damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K32-4 (FAL+) - K30-1 (GND) B - W-B Front damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K32-5 (FAR-) - K30-1 (GND) L - W-B Front damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K32-6 (FAR+) - K30-1 (GND) R - W-B Front damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K32-7 (SLFR) - K30-1 (GND) R - W-B Front leveling valve RH

    • Engine running

    • Up or Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-8 (SLFL) - K30-1 (GND) W - W-B Front leveling valve LH

    • Engine running

    • Up or Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-9 (SLRR) - K30-1 (GND) R - W-B Rear leveling valve RH

    • Engine running

    • Up or Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-10 (SLAC) - K30-1 (GND) B - W-B Accumulator valve

    • Engine running

    • Up or Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-11 (CRFR) - K30-1 (GND) G - W-B Front spring rate switch valve RH

    • Engine running

    • Shift lever in P

    • Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-12 (FBL-) - K30-1 (GND) P - W-B Front damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K32-13 (SHB3) - K30-1 (GND) B - W-B Rear height control sensor RH power source Engine switch on (IG) 4.75 to 5.25 V
    K32-14 (SHB2) - K30-1 (GND) B - W-B Front height control sensor LH power source Engine switch on (IG) 4.75 to 5.25 V
    K32-15 (SHG2) - K30-1 (GND) G - W-B Front height control sensor LH ground Always Below 1 Ω
    K32-16 (RC) - K30-1 (GND) G - W-B Pump motor relay Engine switch on (IG) Below 1 V

    • Engine running

    • Up button of height control switch pushed when vehicle height NORMAL

    		 0 to 14 V
    K32-17 (FBR-) - K30-1 (GND) P - W-B Front damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K32-18 (FBR+) - K30-1 (GND) R - W-B Front damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K32-19 (SHG4) - K30-1 (GND) G - W-B Rear height control sensor LH ground Always Below 1 Ω
    K32-20 (SHG3) - K30-1 (GND) G - W-B Rear height control sensor RH ground Always Below 1 Ω
    K32-22 (SLRL) - K30-1 (GND) G - W-B Rear leveling valve LH

    • Engine running

    • Up or Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-23 (CRFL) - K30-1 (GND) B - W-B Front spring rate switch valve RH

    • Engine running

    • Shift lever in P

    • Down button of height control switch pushed when vehicle height NORMAL

    During control: Alternating between 10 and 15.5 V

    After control: 0 to 0.5 V
    K32-24 (SHRR) - K30-1 (GND) W - W-B Rear height control sensor RH Engine switch on (IG) 0.5 to 4.5 V

    • Engine running

    • Completion of vehicle height control from HI to NORMAL

    		 Approx. 2.5 V
    K32-25 (SHB4) - K30-1 (GND) B - W-B Rear height control sensor LH power source Engine switch on (IG) 4.75 to 5.25 V
    K32-26 (SHFR) - K30-1 (GND) L - W-B Front height control sensor RH Engine switch on (IG) 0.5 to 4.5 V

    • Engine running

    • Completion of vehicle height control from HI to NORMAL

    		 Approx. 2.5 V
    K32-27 (SHRL) - K30-1 (GND) R - W-B Rear height control sensor LH Engine switch on (IG) 0.5 to 4.5 V

    • Engine running

    • Completion of vehicle height control from HI to NORMAL

    		 Approx. 2.5 V
    K32-29 (SLRG) - K30-1 (GND) L - W-B Rear gate valve Rear Gate Valve item of Active Test activated

    ON: Alternating between 10 and 15.5 V

    OFF: 0 to 0.5 V
    K32-30 (SLFG) - K30-1 (GND) GR - W-B Front gate valve Front Gate Valve item of Active Test activated

    ON: Alternating between 10 and 15.5 V

    OFF: 0 to 0.5 V
    K31-1 (BAT) - K30-1 (GND) W - W-B Power supply for damping force control actuator Always 11 to 14 V
    K31-2 (RAL-) - K30-1 (GND) R - W-B Rear damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K31-3 (RAL+) - K30-1 (GND) W - W-B Rear damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K31-4 (RBR-) - K30-1 (GND) G - W-B Rear suspension control actuator RH Engine switch off 12.0 to 13.6 Ω
    K31-5 (RAR+) - K30-1 (GND) W - W-B Rear damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K31-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    K31-7 (RBL-) - K30-1 (GND) G - W-B Rear damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K31-8 (RBL+) - K30-1 (GND) L - W-B Rear damping force control actuator LH Engine switch off 12.0 to 13.6 Ω
    K31-10 (SPB) - K30-1 (GND) B - W-B Fluid pressure sensor power source Engine switch on (IG) 4.75 to 5.25 V
    K31-12 (SHG1) - K30-1 (GND) G - W-B Front height control sensor RH ground Always Below 1 Ω
    K31-13 (RBR+) - K30-1 (GND) L - W-B Rear damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K31-14 (RAR-) - K30-1 (GND) R - W-B Rear damping force control actuator RH Engine switch off 12.0 to 13.6 Ω
    K31-15 (SHB1) - K30-1 (GND) B - W-B Front height control sensor RH power source Engine switch on (IG) 4.75 to 5.25 V
    K31-17 (TOIL) - K30-1 (GND) W - W-B Fluid temperature sensor Engine switch on (IG) 0.15 to 4.79 V
    K31-18 (STG) - K30-1 (GND) G - W-B Fluid temperature sensor ground Always Below 1 Ω
    K31-19 (SPG) - K30-1 (GND) G - W-B Fluid pressure sensor ground Always Below 1 Ω
    K31-20 (PACC) - K30-1 (GND) W - W-B Fluid pressure sensor Engine switch on (IG) 0.47 to 4.62 V

    • Engine running

    • While vehicle height changing from NORMAL to LO

    		 Approx. 0.5 V
    K31-21 (SHFL) - K30-1 (GND) W - W-B Front height control sensor LH Engine switch on (IG) 0.5 to 4.5 V

    • Engine running

    • Completion of vehicle height control from HI to NORMAL

    		 Approx. 2.5 V
    K30-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    K30-3 (BAT2) - K30-1 (GND) R - W-B Power supply for No. 1 height control valve and front suspension control valve Always 11 to 14 V
    K30-5 (IG) - K30-1 (GND) B - W-B IG power supply Engine switch on (IG) 11 to 14 V
    K30-7 (CANH) - K30-8 (CANL) L - B CAN communication line Engine switch off 54 to 69 Ω
    K30-10 (LMSW) - K30-1 (GND) B - W-B Easy access mode switch

    • Engine switch on (IG)

    • Easy access mode on

    		 Below 1.5 V

    • Engine switch on (IG)

    • Easy access mode off

    		 9 to 14 V
    K30-11 (TD) - K30-1 (GND) W - W-B Height control OFF switch

    • Engine switch on (IG)

    • Height control off

    		 9 to 14 V

    • Engine switch on (IG)

    • Height control on

    		 Below 1.5 V
    K30-13 (SGG2) - K30-1 (GND) G - W-B Front acceleration sensor LH ground Always Below 1 Ω
    K30-14 (SGG1) - K30-1 (GND) G - W-B Front acceleration sensor RH ground Always Below 1 Ω
    K30-15 (SGB1) - K30-1 (GND) B - W-B Front acceleration sensor RH power source Engine switch on (IG) 4.75 to 5.25 V
    K30-20 (UPSW) - K30-1 (GND) LG - W-B Height control switch (Up)

    • Engine switch on (IG)

    • Up button of height control switch pushed

    		 Below 1.5 V
    K30-21 (DNSW) - K30-1 (GND) P - W-B Height control switch (Down)

    • Engine switch on (IG)

    • Down button of height control switch pushed

    		 Below 1.5 V
    K30-22 (SGFL) - K30-1 (GND) W - W-B Front acceleration sensor LH

    • Engine switch on (IG)

    • Vehicle kept still without any vertical movement for 1 second

    		 Approx. 2.5 V
    K30-23 (SGB2) - K30-1 (GND) B - W-B Front acceleration sensor LH power source Engine switch on (IG) 4.75 to 5.25 V
    K30-24 (SGFR) - K30-1 (GND) W - W-B Front acceleration sensor RH

    • Engine switch on (IG)

    • Vehicle kept still without any vertical movement for 1 second

    		 Approx. 2.5 V