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Old 07-03-2020, 04:01 PM
SoCalJim SoCalJim is offline
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Do manual transmissions have a Transmission Control Module?

I installed another ECU on my 2004 Z4 2.5L manual transmission car and got a P1611 code which is Serial Communicating Link Transmission Control Module. Does a 2004 Z4 MANUAL transmission have a Transmission Control Module?
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Old 07-03-2020, 08:23 PM
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Clearancediver Clearancediver is offline
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Look in realoem.com using your last 7 VIN numbers.

Look under the appropriate parts diagram to answer your question. That will also tell you the correct part number if it does indicate the part is installed on your particular vehicle.


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Old 07-04-2020, 10:31 AM
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dc_wright dc_wright is offline
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Quote:
Originally Posted by SoCalJim View Post
I installed another ECU on my 2004 Z4 2.5L manual transmission car and got a P1611 code which is Serial Communicating Link Transmission Control Module. Does a 2004 Z4 MANUAL transmission have a Transmission Control Module?
It does not have a TCM. Sounds like the ECU you installed is from a car with an auto tranny and it's looking for the TCM to respond.
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Old 07-04-2020, 04:29 PM
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Clearancediver Clearancediver is offline
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That is what I was thinking... but not familiar with automatics so... You can never go wrong checking out the part numbers to ensure compatibility.


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Old 07-10-2020, 03:06 PM
pokeybritches pokeybritches is offline
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Did you clone your original ECU? If not, how did you change the VIN?


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Old 07-10-2020, 03:23 PM
SoCalJim SoCalJim is offline
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Uh oh... The ECU is tied to the VIN? Is there a HOWTO describing how to do that?
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Old 07-10-2020, 06:29 PM
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Originally Posted by SoCalJim View Post
Uh oh... The ECU is tied to the VIN? Is there a HOWTO describing how to do that?
VIN and mileage are stored in cluster and ECU. If you don't get the cluster set same as ECU at a minimum you'll have the mileage tamper warning in the odometer.

I don't know if you can do the settings with INPA as I haven't had to try that yet, but someone who has will likely chime in.
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