Glow Plug Circuit Check

Glow Plug Controller:

Inspect:
1. All connectors
2. Both controller copper stud upper nuts. Do not tighten them.
3. Engine harness ground connection to the engine
4. Tighten wiring harness nuts to 5 Nm (44 in lbs)
5. Four wire connector at controller. It must be fully seated and latched.
6. Tighten controller mounting nuts to 35 Nm (25 ft lbs)
7. "GLOW PLUGS" lamp on instrument panel for tight connection and operation.

If all connections are intact, but the glow plug system does not operate as stated, refer to Glow Plug System Test. It provides a fast way to find if the glow plug system is working properly. Use this procedure whenever there is doubt about correct system operation.