4R70W Shifting Problems

[midnite88]

Compare the two, when looking at the Ford diagram, the 4R70W and E4OD should be the same.

[ashford]

the pic you posted matches what the manual has for a 4r70w
the manual also matches what i have for the e4od.

[midnite88]

Look at the 4R70W range its looking for in the first picture I posted, now look at the range selector diagrams we each posted are the same, now tell me how that would make the 101 pattern??? Instead it should be 000.

[ashford]

sorry i saw the 1st 2 pics as 1 and thought you were talking about the verbal discription" 4r70 operates in a similar fashion as 4l80, but has a choice of either an analog or digital range sensor".

that is wrong in the 4r70w section, don't know if that is a typo only or if it is actually in the code.

if memory serves a few people have tested out the digital and says it works but that was test code.

[jsmcortina]

I checked the ChangeLog and you need to be running "pre-1.0.2beta1" for 4R70W.

James

[midnite88]

Thanks James, will have pcf-mark give it a try. Been working with him on facebook.

[pcf_mark]

I have replaced my firmware and ini file with the latest beta 1.0.2 and re-started the unit.

I only have 5v on A but B and C are 0 volts. With all three disconnected TS shows 4th gear. I was expecting 2nd as the default. When they are connected (5V on A, B and C 0V) TS still only shows 4th.

When I took it for a test drive I have all 4 gears in automatic mode which is good!

I did some experimenting with other wires in the bundle and have 5V on several other wires. I ran a few to sensor ground and had changes in the gear in TS but nothing that was logical. I would like P-R-N-D to be safe.

Thanks for your help!

[Raymond_B]

Looking at the manual that's what you want, I think I remember reading that D = gear 4 when I was looking up the E4OD.

Gear Selector
Switch mode
--A B C
P 1 0 1
R 0 0 1
N 1 0 1
D 1 0 0 <------- should mean 5v on A 0v on others right?
3 1 1 0
2 1 1 1
1 0 1 1
0 = ground to TCU, 1 = open circuit to TCU (high). Ground-switching input expected.

This is from the E4OD, but I believe it is applicable.

5.8 Ford E4OD
In use by a small number of customers.
This has the choice of either an analogue gear position input or a set of switches. Drive should be defined as
gear 4.

[pcf_mark]

It is not actually reading 4th it is simply defaulting to 4th. If I move the lever to any and all positions it does not change so I do not think it is functioning correctly. For example if I remove all three wires so none are going to ground it still reads 4th in TS which should be 2nd (all high)

P 1 0 1
R 0 0 1
N 1 0 1
D 1 0 0
3 1 1 0
2 1 1 1 this I think is default

[Raymond_B]

It is not actually reading 4th it is simply defaulting to 4th. If I move the lever to any and all positions it does not change so I do not think it is functioning correctly. For example if I remove all three wires so none are going to ground it still reads 4th in TS which should be 2nd (all high)

P 1 0 1
R 0 0 1
N 1 0 1
D 1 0 0
3 1 1 0
2 1 1 1 this I think is default

Ah I see, OK sorry I could not help. I do have a question though, is your selector digital or analog?

[ashford]

you are running off the wrong set of instructions, in drive all switches are open.

for an exercise try grounding 1 wire at a time
when it shows 1 that is switch c then label that wire

unground c then start with other wires when it shows 2 that is sw b and label it

keeping b grounded start grounding others wires, when ts shows -1 then that is sw a
a gets hooked to tr1 pin 4 on mlps
b gets hooked to tr2 pin 5 on mlps
and c gets hooked to tr4, pin 6
then pin 6 on mlps gets grounded

[midnite88]

Think you mean Pin 2 gets grounded, from my sourcing it should be as such.

Tr1 or Pin 4 to A
Tr2 or Pin 5 to B
Tr4 or Pin 6 to C
Return or Pin 2 to GND

In theory, the E4OD Switch mode should work, you just need to input custom gear ratios and change them to the 4R70W ratios.

[ashford]

Think you mean Pin 2 gets grounded, from my sourcing it should be as such.

Tr1 or Pin 4 to A
Tr2 or Pin 5 to B
Tr4 or Pin 6 to C
Return or Pin 2 to GND

In theory, the E4OD Switch mode should work, you just need to input custom gear ratios and change them to the 4R70W ratios.

yep pin 2 gets grounded, dont select e4od as this will change the outputs as well and the e4od has different outputs from the 4r70. the newer code has the corrected shift input patterns( if it is the same as has been tested by others).

[midnite88]

Talking with mark, it seems Pin 11 and Pin 29 (SEL B and SEL C ) are not being initialised. Pin 11 and Pin 12 have identical circuits but only Pin 12 is showing the 5v pull up. Something seems amis here. Any other way to check to see if these ports are behaving correctly?

[jsmcortina]

Is this with the gearbox type set to "4R70W switch" and the latest beta firmware installed? Please attach the current MSQ.

"4R70W analog" was incorrect.

James

[pcf_mark]

Thanks to some remote help we reloaded my firmware again and verified that things are up to the latest beta version of the code.

Running the test James suggested I disconnect all wires going to the range sensor and started from scratch. When I touch pin 34 to sensor ground I get 1 in TS for selector. When I touch pin 25 to sensor return I get 2 in TS for selector. No combination of single wire or having either of these also connected give me 3 or 4. The default was 4 but the latest update it is 3.

Going all the way back to every example and known documentation the proper wiring is

Pin 12 to A
Pin 11 to B
Pin 29 to C
Pin 20 to sensor return

My microsquirt does not have 5v on two of these three wires so I think that is the problem. Is this a firmware setting or is something not right on my board?

We have 4R70W switched selected. We used the default .msq with no changes other than base settings for this install. Attached is the current .msq.

Thanks

[ashford]

which microsquirt version do you have 1, 2 or 3?

[pcf_mark]

V3 sorry I did not mention that.

Again - thanks for everyone's help.

[ashford]

the way you describe it you have a v2( according to the install instructions anyway)
pin 34 is sw c
pin 25 is sw b
that is what your testing has shown and matches v2 hardware
if that is the case then pin 26 would be sw a

[ashford]

i wanted the know the difference in the v1,2 and 3 internally so i went looking and found they are pretty close besides the ignition outputs and vr inputs

did some more checking in diagrams and pin 25, 26 and 34 go to the same processor ports as the v3 pad01/an01, pad02/an02 and pad05/an05 so they should be the same. i would try following the v2 instructions in the supplemental pdfs

jsmcortina can you verify this