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Eaton Ultrashift Troubleshooting Guide

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Fault Isolation Procedures<br />

Power Up Sequence Test, continued<br />

Step D Procedure Condition Action<br />

1. Key on.<br />

2. Measure voltage between<br />

pin A and pin C.<br />

If voltage between pins A and<br />

C is within .6 volts of battery<br />

voltage<br />

If voltage is outside of range<br />

Go to Step E.<br />

Repair Ignition power supply to<br />

ECU. Fuse may be blown. Repeat<br />

test.<br />

For Transmission<br />

Diagnostics<br />

VOLTS<br />

V COM A<br />

B<br />

C<br />

A<br />

D<br />

4-way<br />

B - Service Bat. +<br />

C - Service Bat. -<br />

A - Service Ignition +<br />

Step E Procedure Condition Action<br />

1. Is vehicle equipped with<br />

an Shift Lever<br />

If vehicle is not equipped<br />

with a Shift Lever<br />

Go to Step F.<br />

If vehicle is equipped with a<br />

Shift Lever<br />

Go to Step K.<br />

2-5

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