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Q - Air Suspension Relay under bonnet

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  • Q - Air Suspension Relay under bonnet

    Can some one with an electrical diagram or they may just know, check where the small 10A (ish) black with white stripe wire goes from the Air Suspension relay, this relay is located under the bonnet, as an extra attachment closest to the engine, on the fuse box.

    The wire of concern is the small wire that is powered by the 50A black with white stripe wire, through a double-up at the terminal.

    Cheers - Spurio
    "Ooops I just deleted the internet, lucky I was able to recover 99.7% of it out of the bin" :lol:

  • #2
    Re: Q - Air Suspension Relay under bonnet

    I used the spare air suspension relay space under the bonnet and wired up some lights. The original toyota wires are 50 Amp fused already hardwired into the system, directly link to the battery. The new relay is fitted into the blank and within the toyota splash guards. Unlike most other driving light wiring, I have no open relays in the engine compartment.

    I've dropped the fuse down to 20A for safe measure (these fuses are a bugger to track down, OMG genuine toyota price !! but Narva does them in steps of 10A starting at 20. They are called "Mini Female Fusible Link - Plug in Type 2. They have the dimesions 14mm x 12mm x 27mm. They are NOT the ones with a LOCK and Type 1 DO NOT FIT). They must be the Type 2 style.

    The only wire I used was the power supply to the air suspension, the rest needs to be wired up. If someone has the time there are 2 other wires that can be traced back under the dash and more than likely could be used as trippers.

    The small black wire was already live prior to this rewire and knowing how toyota loves to link the most unusual things, I left it the same.

    All works fine.
    "Ooops I just deleted the internet, lucky I was able to recover 99.7% of it out of the bin" :lol:

    Comment


    • #3
      Re: Q - Air Suspension Relay under bonnet

      Hi Spurio,
      I will check out the cct diagram and give you a hoy tonight!
      07 Upgrade GXL D4D, Manual, Dune,Sov Bar, BFG's, SG11, Redark dual Batts, Extensive Aux wiring, Stebel, LED stop tails, IPF HID's (my mod), 240V Inv, ARB Comp, GME UHF,TPMS, Safari snorkel, GPS,Hilux washers, 40l Engel in 30% pas pos,homemade A/C cond protection plate, polyairs.

      Comment


      • #4
        Re: Q - Air Suspension Relay under bonnet

        Originally posted by clifton
        Hi Spurio,
        I will check out the cct diagram and give you a hoy tonight!
        Sorry am a bit late, got a lung infection had to go to doctor;
        Air Suspension Relay:
        Pin 1: BR-Y Relay Control goes to RC on Air Suspension ECU
        Pin 2: W-B Relay Coil Earth to Body
        Pin 5: B-W (black with white stripe) Relay Contact Supply Feed from 50 Amp Fuse, fed from 140 Amp Alt Fusible link Batt +Ve *****
        Pin 3: L-B (50 Amp) Supply from + Ve Relay Contact to Height Control Compressor.

        Hope this helps
        07 Upgrade GXL D4D, Manual, Dune,Sov Bar, BFG's, SG11, Redark dual Batts, Extensive Aux wiring, Stebel, LED stop tails, IPF HID's (my mod), 240V Inv, ARB Comp, GME UHF,TPMS, Safari snorkel, GPS,Hilux washers, 40l Engel in 30% pas pos,homemade A/C cond protection plate, polyairs.

        Comment


        • #5
          Re: Q - Air Suspension Relay under bonnet

          Originally posted by clifton
          Sorry am a bit late, got a lung infection had to go to doctor
          Hope you're alright and are on the mend Clifton, it doesn't sound too good ??

          Thanks for the info, very helpful. I ended up using Pin 5 as my relay source (way over Amp spec'ed), I put a new terminal on the existing wiring and used the spare DIN relay site to fit the new relay.

          I suspect the second smaller (black white stripe piggy backed wire) that goes to Pin 5 maybe be used in a secondary relay (where fitted) in the air suspension. In any case, it was live before I touched it, so I left it as is.

          Everything is working fine - Potentially this wiring can run 6x100W Halogen or 10x55W or 17x35W HIDs from this one relay !!!

          I could not get a good reading for Pin 2 - earth, I suspect this may not be hard wired into the system unless the Air Suspension is fitted, it is fairly easy to make a new one.

          It's amazing, the amount of unused wires, relays and fuses, the prados now have. Any accessory from base model to top of the line is basically a plug and play !! I wonder what the after market cost would be at fitting some of these options?

          Hope you're a bit better for xmas Clifton.

          Thanks Again
          "Ooops I just deleted the internet, lucky I was able to recover 99.7% of it out of the bin" :lol:

          Comment


          • #6
            Re: Q - Air Suspension Relay under bonnet

            Hi Spurio

            Everything is working fine - Potentially this wiring can run 6x100W Halogen or 10x55W or 17x35W HIDs from this one relay !!!
            But can your alternator support it? My 2007 D4D has an 80 amp alternator. I had my system tested. It needs 13 amps just to run the diesel engine. Probably more for petrol, with ignition, etc. Add your 50 amps from the quote to give 63 amps. That leaves you 17 amps to run air-con, radio, wipers, car fridge, charge auxilliary battery, power the trailer lights, run the toys and mods we all like to add. It's not enough, mate, especially if you leave the standard headlights in the equation - there's another 9 amps, leaving you a margin of just 8.

            Be careful.

            Cheers
            2007 D4D GXL.Suspension by Ultimate, Minto - modest lift.DIY shelf unit (help from ORS, Narellan).Polyairs.Dual batteries with RanOx smart DC-DC charger.Towing a Kimberley Karavan with another RanOx.

            Comment

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