P0381 is set when 1)excessive voltage is detected or 2)no current is detected like open or short to ground in glow lamp control circuit for more than 0.9 sec. at glow lamp ON condition. This code is due to open in glow lamp control circuit or internal open in filament of glow lamp component.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring |
•
Open in glow lamp
•
Glow lamp circuit | ||
Enable Conditions |
•
IG KEY "ON" (monitoring only performed within lamp operating condition) | |||
Threshold Value |
•
Short to battery
•
Short to GND, Wiring open | |||
Diagnostic Time |
•
0.9 sec. | |||
Fail Safe | Fuel cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
MIL | NO | |||
