Conditions for Setting the DTC

WARNING: This page is about a different variant/trim than selected.

DTC will set when any of the following conditions exists:

GPCM detects 0 volts on the Ignition 1 Signal circuit while glow plugs are commanded ON for greater than 1000 ms.
GPCM detects voltage on the glow plug supply voltage circuit when glow plugs are commanded OFF for greater than 60 ms.
GPCM detects a ground offset greater than 1.5 volts between the GPCM Signal Ground circuit and Glow Plug Ground circuits while the glow plugs are commanded ON for greater than 200 ms.