Eaton Gen 1 (AutoShift) Fault Code: 12 PID: SID 233 FMI: 12 Transmission ECU

Overview:
The code indicates an internal failure of the Transmission ECU.

Detection:
The Transmission ECU checks the program memory every time the key is turned on. If the transmission is able to detect a failure within its own memory, it sets this fault code.

Fallback:
This fault causes an In Place fallback while moving and a failure during system initialization.

Required Tools:
1) Basic Hand Tools
2) AutoSelect/AutoShift Troubleshooting Guide

Possible Causes:
1) Improper configuration software
2) Faulty Transmission ECU

Categories DTC TRUCKS, Eaton, Gen 1 (AutoShift) Tags 1, 12, 233, AutoShift, Code, Eaton, ECU, Fault, FMI, GEN, PID, SID, Transmission

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