P0670 is set when 1)excessive voltage is detected or 2)no current is detected like open or short to ground in glow relay control circuit for more than 0.2 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 |
•
Glow relay control circuit
•
Glow relay component | ||
Enable Conditions |
•
IG KEY "ON" (Monitoring only performed within lamp operating condition) | |||
Threshold Value |
•
Short to battery
•
Short to GND, Wiring open | |||
Diagnostic Time |
•
0.2 sec. | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | NO | |||
