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

[jbockus at hiwaay.net]

Dan, Doesn't this take the small separate TCM? If so, they are cheap 
from the dealer.

On 2025-08-07 2:18 pm, donnadan--- via trnw2 wrote:
> Thanks guys! I will see if I can get a refund from them. (good luck!)
> -- I know.
> 
> -------------------------
> 
> From: "TRNW2" <trnw2 at trnw.net>
> To: "TRNW2" <trnw2 at trnw.net>
> Sent: Thursday, August 7, 2025 12:13:14 PM
> Subject: Re: TRNW-2: TCM waveform on my scanner from a 08 Humer H3
> 
> flagship one your lucky it worked at all get another tcm and not from
> them ever they are know dam good.
> 
> donnadan--- via trnw2 wrote on 8/7/2025 1:57 PM:
> 
>> 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>
>> To: "TRNW2" <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>
>>> To: "DAN OR DONNA STEWART" <donnadan at gilanet.com>, "TRNW2"
>>> <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>
>>> To: "TRNW2" <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
>> 
>> This message was sent from the TRNW Technical Discussion Forum
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>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>> 
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> 
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> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
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