Just be careful with the circuit board dont put too much heat into it or you will destroy it in seconds. If you need to test the electronic throttle body itself check out this tutorial.
Toyota Sienna Service Manual Inspection Throttle Body
Throttle body wiring diagram. Throttle body tac circuit wiring diagram 2004 2006 35l malibu. Electronic throttle body 50 mm order number 0280y05107 10 electronic throttle body 52 mm order number f02uv01184 01 electronic throttle body 54 mm order number 0280750150 electronic throttle body 60 mm order number 0280750151 electronic throttle body 68 mm order number 0280750156 electronic throttle body 82 mm order number 0280750101. As you have probably already observed there are 8 wires sticking out of the electronic throttle body. Electronic throttle body circuit. Yellow connectors are the additional ones from step 1. In my original post i said i replaced only one wire at a time.
Opening the side of the throttle body to access the circuit board is easy. The injectors are designed to allow possible fuel vapor to rise to the top and dissipate through a channel to the return line which the pressure is controlled through the regulator. When looking down at the electronic throttle bodys connector the top row from left to right has 4 wires which are labeled from a to d see photo. Security torx bits needed. Throttle body assembly as you can see from the above diagrams compared to a carburetor the tbi is much simpler in design. Red connector is the throttle body connector that will be replaced.
Electronic throttle body tests 2007 2009 35l chevrolet malibu and pontiac g6. I did also make my own wiring diagram half way through and around the. You can find the tac system wiring diagram for the 2004 2005 2006 35l chevrolet malibu here. Removing the other two is not essential but allows more room to work and is worth the two seconds it takes. Remove throttle body connector and two others that share the same wiring harness. The second row bottom row from left to right the wires are labeled e to h see photo.
Gallery of Throttle Body Wiring Diagram
