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Eaton Gen 1 (AutoShift) Fault Code: 53 PID: SID 34 FMI: 2 Reverse Ball Switch

Overview:
This code indicates a mechanical or electrical failure of the ball switch that reports engagement in the reverse gear position.

Detection:
The Transmission ECU monitors the Reverse Switch for incorrect input based on the gear selection.

Fallback:
There is no fallback mode. Driver will be unable to select reverse or forward gears based on Reverse Switch failure.

Required Tools:
1) Basic Hand Tools
2) Digital Volt/Ohm Meter
3) AutoSelect/AutoShift Troubleshooting Guide

Possible Causes:
1) Failed reverse ball switch
2) Damaged transmission harness
3) Gear select sensor in electric shifter
4) Mechanical failure in electric shifter
5) Worn yoke
6) Failed shift block
7) Malfunctioning transmission ECU

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