Online manual not for resale purposes – BLITZ Scion xB-xA Compressor System User Manual

Page 21

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ECU/Under Dash wiring

(Wiring for the activation box)

1. Remove the engine control computer cover underneath the passenger side glove
compartment. *Hint: removing the Factory glove compartment will make this part of the
installation easier.( To remove, unlatch glove box and pull in an upward motion. Box is clipped
onto dash.

2. Connect to the blue wire coming out from the firewall (from the outside relay) to the blue wire
coming from the activation box and to the #5 (green) wire coming out of the Fuel controller.

**note: blue – (blue + green)

3. Connect the yellow wire coming off the activation box to wire “A” on the ECU. This is location
#21 on the 34 pin harness that is located as the first harness plug on the far left on the ECU
(closest to the center console).

4. Connect the black wire coming off the activation box to wire “B” on the ECU. This is location
#28 on the 34 pin harness that is located as the first harness plug on the far left on the ECU
(closest to the center console).

5. Connect the red wire coming off the activation box to a +12V ignition source. It can be

connected to the 12volt ignition on wire off the ignition key switch.

(Wiring for the Fuel controller)

6. Find a suitable place to mount the fuel controller module. *Make sure the fuel controller does
not come in contact with moving parts or won’t be damaged by parts or persons in the passenger
side compartment. If the glove box is removed it makes this part a lot easier.

7. Using the wiring diagram on the next page. Wire up the 7 remaining wires from the fuel
controller, using the included wire taps and connectors. Make sure there is sufficient slack on
wiring so the unit and wires are not under unnecessary strain.

* NOTE: Double check the color of the wires and location on the ECU before the final connection
is made. Make sure the connections are secure and tight. Improper wiring and bad connection
will cause the Supercharger to work intermitently and or cause engine damage.

8. Wire tie any loose wires and securely mount any loose parts. Reinstall the glove box and ECU
cover after checking that all connections are secure.

ECU arrangement differs depending upon car type * year system.
* As for ECU arrangement car type * It differs year depending upon formula. Please note.

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