2017-10-10
Check the glow plug control module wiring for any loose or damaged connections.
Inspect the glow plug control module for any signs of moisture or corrosion and clean or replace if necessary.
Test the glow plug control module voltage with a multimeter to ensure it is within the proper range.
Check the glow plugs themselves for any damage or wear and replace as needed.
If all else fails, consider replacing the entire glow plug control module.
Faulty glow plug control module
Loose or corroded electrical connections
Faulty glow plugs
Defective engine control unit (ECU)
Low battery voltage
Difficult or slow engine start
Illuminated glow plug warning light on the dashboard
Poor engine performance or reduced power
Increased black smoke from the exhaust
Increased fuel consumption