TRNW-2: TCM waveform on my scanner from a 08 Humer H3

[Ryan D]

I used them once this year. No bueno

On Friday, August 8, 2025, Chuck Clampitt via trnw2 <trnw2 at trnw.net> wrote:

> I tried Flagship One a couple of times and had to send both modules back.
>
> Chuck
> On 8/7/2025 12:57 PM, donnadan--- via trnw2 wrote:
>
> Tod, it is the 4L60e line, and the code is (P0961) Pressure Control
> Solenoid “A” Control Circuit Range/Performance issue. I got a TCM from
> Flagship One, and it seemed to work at first, but it is acting up again
> now. I was thinking that since these are used TCMs that are being tested
> and flashed, maybe I got one that was on the verge of failure. I have heard
> that it is a common issue for these Hummers.
>
>
>
> ------------------------------
> *From: *"TRNW2" <trnw2 at trnw.net> <trnw2 at trnw.net>
> *To: *"TRNW2" <trnw2 at trnw.net> <trnw2 at trnw.net>
> *Sent: *Thursday, August 7, 2025 11:24:19 AM
> *Subject: *Re: TRNW-2: TCM waveform on my scanner from a 08 Humer H3
>
> What transmission model does it have?
>
> What is the code it is setting?
>
> Tod
> On 8/7/2025 9:58 AM, donnadan--- via trnw2 wrote:
>
> I still have not received any replies on this issue. Anyone there?
>
> ------------------------------
> *From: *"DAN OR DONNA STEWART" <donnadan at gilanet.com>
> <donnadan at gilanet.com>
> *To: *"DAN OR DONNA STEWART" <donnadan at gilanet.com> <donnadan at gilanet.com>,
> "TRNW2" <trnw2 at trnw.net> <trnw2 at trnw.net>
> *Sent: *Wednesday, August 6, 2025 12:30:07 PM
> *Subject: *Re: TRNW-2: TCM waveform on my scanner from a 08 Humer H3
>
> Okay, now it's going into default again. I am thinking this used and
> recalibrated (for this VIN#) TCM is not working right. Any experience you
> guys might have with this would be welcomed.
>
> ------------------------------
> *From: *"TRNW2" <trnw2 at trnw.net> <trnw2 at trnw.net>
> *To: *"TRNW2" <trnw2 at trnw.net> <trnw2 at trnw.net>
> *Sent: *Saturday, August 2, 2025 3:21:37 PM
> *Subject: *TRNW-2: TCM waveform on my scanner from a 08 Humer H3
>
> Does anyone have an example of a scanner waveform, commanded and actual? I
> am getting hash when the amperage changes. I can't remember what this
> should look like. It came in under default, and I could not manually make
> the amperage change with the scanner, so I changed the TCM after testing
> the circuit through the PCS to TCM. It still kept setting PCS code and
> default, so I changed the solenoid from new style to old style, and it
> seems to work ok, but occasionally I still see the code, even though it is
> not going into default. Hope this makes sense.
>
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>
>
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>
> --
> Best Regards,
> Tod Chretien
> TRNW Inc.https://www.trnw.net
>
>
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> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
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>
>
> This message was sent from the TRNW Technical Discussion Forum (trnw2). You were sent this message because you have subscribed to our mailing list. If you don't want to receive these emails from TRNW in the future, please unsubscribe here:https://www.trnw.net/unsubscribe.php?forum=2
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>
>

-- 
Ryan
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