New Holland 14203: Electro-Hydraulic 4WD Engagement/Release Relay Coil Signal Issue

A short circuit to +12 V or an open circuit has been detected on the supply signal to the electro-hydraulic 4WD engagement/release relay coil. This fault affects the proper operation of the 4WD system.

1. 1

   The wiring and connections to the electro-hydraulic 4WD engagement/release relay coil

2. 2

   The integrity of the supply signal circuit to the electro-hydraulic 4WD engagement/release relay coil

3. 3

   The condition of the electro-hydraulic 4WD engagement/release relay coil itself

1. 1

   Inspect

   Inspect the wiring and connections to the electro-hydraulic 4WD engagement/release relay coil for damage, corrosion, or loose connections.

2. 2

   Test

   Test the supply signal circuit to the electro-hydraulic 4WD engagement/release relay coil for continuity and proper voltage.

3. 3

   Replace

   If a fault is found, replace the electro-hydraulic 4WD engagement/release relay coil or repair the affected circuit as needed.