i have a 2002 mazda mpv with code p0752. shift solenoid a stuck on, what does it mean and what do i need to do to fix this problem
Country: United StatesMake: MazdaModel: MPV LXYear: 2002
Hi [USERNAME]! Let me put the Zoom Zoom back in your Mazda!
The first thing you want to do is check the level and condition of the transmission fluid. If it is low then top it off and if it is very dirty you will need to have it flushed.
This could be a problem with the solenoid, the shift valve or the Transmission Control Module
The Mazda diagnostics for this code aren't that good. Basically if the fluid is good then they want you to replace the valve body.
the fluid is new
This would cover the solenoid and the shift valve at the same time.
Did this start after changing the fluid?
yes, it shift well from 1 to 2. after it will rev freely instead of going to 3. after it get warmed up, it will refuse to move
in any gear
it started before the fluid change
It sounds like there is a mechanical problem which is going to require replacing the valve body.
There could be a short on the wire controlling the solenoid. That would have to be checked with a meter and is a somewhat involved procedure.
are you saying i should change the solenoid and valve body
what is the procedure, i am a mechanic
The solenoid is attached to the valve body.
about 9 of them
where can i buy them and what is the price like
Bear with me here... there is a bit of information to relay on checking the solenoid
Shift Solenoid A is terminals I and J on the connector going into the transmission
If you disconnect the plug and look at the side connected to the trans
i don't have the pin lettering chat
It is the 5th column over top and bottom pins.
You can measure the resistance there first. Should be 14-18 ohms
If all is good there then plug it back in and you will have to backprobe the wire to check and make sure it is not being commanded on with voltage at all times.
If all is good there then you need to get inside the transmission and examine the valve body
how do i check the back probe
You can try swapping the shift solenoids to see if the problem changes
The shift solenoids have 1 wire connector and get grounded through the body of the sensor
swap which ones
Shift Solenoid A is in the row of 4 solenoids... it is the one with the electrical connector facing the opposite way
can you send me a diagram if you have any
To answer your question about backprobing... that just means you will need something like a safety pin to push in through the back of the connector to touch the wire or you can pierce the wire insulation and measure like that
just be sure to cover the spot that you pierce if you do it that way
Shift solenoids B and C are also in the row of 4 solenoids
They are one the opposite end.... once you get in there you will see what I am talking about.
i will open it up first thing in the morning
how much do they cost?
can i buy them from the dealer
I'm not sure if Mazda sells them individually
You can check them out... they sell shift solenoids, they may have yours
how much is the kit and how many are in it
Check this link out for some diagrams
I don't have part #s or pricing for these solenoids... you will have to call the dealer and check that link
ok, i will contact you tomorrow after i have done all you asked and will let you know. is there any other ideal you want me to try
The only other thing is to remove and disassemble the valve body to check the movement of all of the shift valves. Not something for the faint of heart.
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