CLAAS 7711h – Claas Eng A15 Engine Module: High voltage on the glow plug relay

The system has detected high voltage on the glow plug relay, which may lead to difficult starting and irregular engine operation. This issue is associated with the glow plug and the preheating relay.

1. 1

   The glow plugs (R78)

2. 2

   The preheating relay (K1)

1. 1

   Inspect

   Inspect the glow plugs (R78) for damage or wear.

2. 2

   Test

   Test the preheating relay (K1) for proper function.