Question about Toyota 4Runner
I am a ham radio operator. Occasionally when I key my transmitter in my truck the when I am parked next to it the alarm in the 4 runner goes off. I probably need to add some chokes but without a wiring diagram I don't know where to put them. Any suggestions. Thanks
Ferrites may not solve the issues. You would want to follow the door switches over to the alawrm module, make sure that the module has a full metal casing, if not- wrap it in foil and ground it. Snap a 2 piece ferrite around each wire that comes out of the module and also add a .0.01 or 0.001 capacitor to ground from the higher potential wire connections at each switch you can locate to quench or bleed off the RF. You may need to relocate the antenna as well and also see if you can trim for even better SWR, and put a choke on the power feed wire to the transciever power leads 1 each side if the unit can be used in positive grounded as well as negative ground vehicles. And it might not hurt to put a ground plane (copper clad board) between the transciever and any wiring of the vehicle if possible. Many of those alarm units use a 10.7 Mhz IF, and recieve in the 380- 390 Mhz band, so you have some harmonics issues as well if it continues to be an issue. Switching to RG 8 may help.
Posted on Oct 30, 2012
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Posted on Jan 02, 2017
Diagram is unnecessry.
Pull both front wheels
Work one at a time leaving the other for reference
Find the retention spring ... its a paperclip thickness wire spring... dislodge center retention loop and undo from both ends which engage brake pad retention rods.
Pull the rods out
Pull the old pads out... laying everything on the ground
Use scrap wooden wedges to pry between the rotor and the caliper ...inside and out until the calipers are fully withdrawn. Use the new pads to measure if they are far enough back.
Note... the brake fluid will have dropped in the master cylinder over many months of wear... do not fill it. When the calipers are pushed back they will fill the reservoir again... one wheel at a time.
Be sure to identify the correct pad based on what you took out and what is on the other side (if you screwed up the layout)
Make sure to take the old antisqueek backing plate from the old pad and place it on the new pad. They don't use lubricant on these anymore.
Replace the pads... the retention rods... then the retention spring
Do the other side
Then progressively step on the brake peddle until full tension is felt
Check the master cylinder reservoir... probably needs no additional fluid.
New pads will register in existing ridges in each disc in no time at all.
You should check the discs to see if they need to be replaced during this operation...using some calipers
Posted on Mar 25, 2009
Clck here for the correct wire colors for Toyota. http://www.autotoys.com/New_Tech/Wire_codes/TOYOTA_WIRE_COLORS/toyota_wire_colors.htm
Posted on Apr 17, 2009
It is the BCM (Body control module). The radio is married to it via the serial number. You need to replace the module (lower right kick area, pass side in front of front door, behind plastic...aluminum box), and have it programmed to your car through a Tech 2 diag system.....dealer...this unit controls just about everything apart from the brakes, engine and tranny which all have their own computer. You probably have issues with the sun roof if you have this option.
Posted on Aug 18, 2009
I have to find out how to send you a picture, I can't do it on here for some reason. if you want give me your e-mail address and I'll send it to you.
Posted on Jan 05, 2010
1st coil goes to 2nd plug on lh side
2nd coil goes to 3rd plug on lh side
3rd coil goes to 1st plug on lh side
Posted on Feb 07, 2010
Testimonial: "Exactly what I needed, thanks"
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