New Holland 15993 – New Holland Steering Controller: 5 Volt Reference Circuit Fault

The 5 volt reference circuit is experiencing a short to ground or a short to B+.

1. 1

   the 5 volt reference circuit

2. 2

   connections related to the 5 volt reference circuit

3. 3

   wiring for damage or improper routing

1. 1

   Inspect

   Inspect the 5 volt reference circuit for visible damage, corrosion, or improper connections.

2. 2

   Test

   Test the 5 volt reference circuit for continuity and resistance using a multimeter.

3. 3

   Isolate

   Isolate the 5 volt reference circuit from other systems to determine if the fault is localized.