P0670 is set when excessive voltage is detected or no current is detected like open or short to ground or battery in glow relay control circuit for more than 1 sec. at glow relay ON condition. This code is due to open in glow relay control circuit or internal open in glow relay component.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Voltage monitoring | 1. Glow plug relay open or short to battery or ground 2. Faulty glow plug relay | |
Enable Conditions |
•
IG "ON" & Engine "ON" | ||
Threshold Value |
•
Glow plug relay circuit error | ||
Fail Safe | Fuel Cut |
•
NO | |
EGR Off |
•
NO | ||
Fuel Limit |
•
NO | ||
Check Lamp |
•
NO | ||
