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sprinkles08, ASE Certified Technician
Category: Transmissions
Satisfied Customers: 23112
Experience:  Chrysler/Dodge/Jeep master tech ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans Specialist
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I have a 2005 745i bmw and my transmission failsafe light is

Customer Question

I have a 2005 745i bmw and my transmission failsafe light is on.
Submitted: 2 years ago.
Category: Transmissions
Expert:  sprinkles08 replied 2 years ago.
Hello and welcome to Justanswer!
The light is on because the transmission control module has seen an issue that can cause damage or prevents it from having complete control, an it has set a fault code.
The problem could be many things including the trans controller itself, solenoids, peed sensors, wiring, and internal transmission issues such as clutches, geartrain, the torque converter or valve body.
The first step in diagnosing the problem will be to use a scan tool to see what fault codes are setting in the TCM.