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 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 |
•
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 |
•
1.0 sec. | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | NO | |||
