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

[donnadan at gilanet.com]

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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