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

[Tod Chretien]

Check out this thread 
<https://www.trnw.net/trnw/fixdata.php?input=4L60E&aname=16949&confirmed=no&threadID=4L60E-585&cat=trouble#trouble>!

Tod

On 8/7/2025 12:28 PM, Tod Chretien via trnw2 wrote:
>
> WARNING! Those TCM's set a PCS code when they aren't programmed. Been 
> there, done that!
>
> Tod
>
>
> On 8/7/2025 12:18 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> <mailto:trnw2 at trnw.net>
>>     *To: *"TRNW2" <trnw2 at trnw.net> <mailto: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>
>>         <mailto:donnadan at gilanet.com>
>>         *To: *"DAN OR DONNA STEWART" <donnadan at gilanet.com>
>>         <mailto:donnadan at gilanet.com>, "TRNW2" <trnw2 at trnw.net>
>>         <mailto: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> <mailto:trnw2 at trnw.net>
>>         *To: *"TRNW2" <trnw2 at trnw.net> <mailto: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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>>         TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>>
>>
>>         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:
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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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>>
>>
>>
>>     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:
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>>     TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>>
>>
>>
>> This message was sent from the TRNW Technical Discussion Forum 
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>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>>
>> 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:
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>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
> -- 
> Best Regards,
> Tod Chretien
> TRNW Inc.
> https://www.trnw.net
>
> 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
> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355

-- 
Best Regards,
Tod Chretien
TRNW Inc.
https://www.trnw.net
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