2002 Tundra ABS actuator brake line mapping discrepancy.

Hello.

I'm new to the forum, and I've been searching but I haven't seen any posts related to my question.

I have a 2002 4wd access cab tundra with 4.7 L.

I blew a brake line the other day while testing if replacing the vent plug in my differential would stop the axle seal leaking after I just had the bearings and seals replaced (which they still do). I doubt it helped, but I won't know until I replace all my brake lines first, because I found all of them are rusting out.

Anyway, my question is about (what I believe is) the ABS actuator which is in the left rear corner of my engine compartment (see attached file).

When I go online to Toyota Genuine parts and pull up the brake line diagram, it shows the mapping criteria on where to thread the brake lines into the part depicted. Their diagram mapping does not correspond to the actual landing in my truck of the 5 brake lines into this component.

I would appreciate and insights on my question. E.G. the part in my photo actually the ABS actuator? if not then what am I dealing with... Also, if it is indeed an ABS actuator, it would seem possible to suspect that if the right front wheel is slipping and the left front brake is mapped to the right front brake on this actuator, then the left front brake would get the ABS treatment, not the right front brake. If so I don't think I would like that experience.

Thank you.

 

That indeed is the ABS actuator

The actuator itself has been discontinued, but you can still get a lot of the lines (flip thru the diagrams to find your parts):

https://parts.toyota.com/a/Toyota_2...11_6709498/BRAKE-TUBE--CLAMP/841420-4708.html

​

 

Thanks Shifty.

I do have the same diagram you attached (and thank you for that just the same). When I trace the parts landing into (which I now know to be) the actuator installed in my truck, where my truck brake lines land in my actuator does not correspond to the mapping Toyota shows in the diagram.

So for example. In your diagram above, the number 47316 in the back RH corner of the depicted actuator is the brake line part number for the Left Front brake and tracing it indeed shows it going to the LF brake. However in my actual truck, the brake line that threads into the actuator at that location is the brake line which I trace in my truck to the rear brakes. The part number of that brake line is actually 47322 as show in the diagram.

I'm not sure if I should re route the lines to correspond to the Toyota diagram, or land them in the same position as the current lines in my truck when I replace them.

 

I would take action based on what I see, but I would probably also consult the FSM.

'03 (supposedly applicable to '00-'02): https://drive.google.com/file/d/0B9...aGM/view?resourcekey=0-IUgFBrEgIe9zfnbQv0LhaA
05-06 (absolutely 100% '05-'06): https://drive.google.com/file/d/0B-...WjA/view?resourcekey=0-lv7xW9_5TKqpbWKbBzVP0Q

 

I'm gonna answer your question with another question. Is your truck eligible for the frame recall? Sounds like you have rust issues. All brake lines are replaced if the frame is replaced.

 

Also the 2002 did not have VSC. I don’t think you have individual wheel abs as a means of stability or traction control. I think it’s an all or nothing abs action. Now wether there’s a difference in orifice size front to rear etc, I’m not sure.