Tcm (3 Viewers)

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Jun 25, 2025
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N.east england
Hi,anyone know the location of the transmission control module on a 97 80,right hand drive,I've found the transmission relay but can't find the tcm,or is the relay it
 
TCM is integrated into the main vehicle ECM. 1995+ integrates both modules.
That sounds like it could be expensive lol,hopefully it might be a faulty relay,truck won't change gear until about 3000rpm,changed the transmission filter,new solenoids and a new kickdown cable,still no good,read on various forums etc it could be the tcm.Is the mainECM on the left footwell under the gloves box?
 
That sounds like it could be expensive lol,hopefully it might be a faulty relay,truck won't change gear until about 3000rpm,changed the transmission filter,new solenoids and a new kickdown cable,still no good,read on various forums etc it could be the tcm.Is the mainECM on the left footwell under the gloves box?

Behind the glove box.
 

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