Symptom Related Diagnostic Procedures

Note regarding preglow circuit:
An electronic short circuit protection feature is installed in the preglow time-limit relay module. If a short circuit occurs in the glow plugs or the wires to the glow plugs, the current is interrupted.

The preglow time-limit relay module is again operational if the short circuit is eliminated and the glow/starter switch is turned to position "0".

A malfunction of a glow plug is not indicated by the preglow indicator lamp.