JCB P219D-13: Open Load Error of DEF Heater Relay Actuator Powerstage

The system has detected an open load error in the DEF heater relay actuator powerstage. This indicates a problem with the electrical circuit supplying power to the actuator, potentially preventing it from operating correctly.

1. 1

   The wiring and connections to the DEF heater relay actuator powerstage

2. 2

   The powerstage itself for signs of damage or failure

3. 3

   The circuit for continuity and proper voltage supply

1. 1

   Inspect

   Inspect the wiring and connections to the DEF heater relay actuator powerstage for damage, corrosion, or loose connections.

2. 2

   Test

   Test the powerstage for continuity and proper operation using a multimeter or diagnostic tool.

3. 3

   Replace

   If the powerstage is found to be faulty, replace it with a compatible component.