P0650 is set when 1)excessive current is detected in engine check lamp control circuit for more than 4.5 sec. at engine check lamp ON condition or 2)like open or short to ground, no current is detected. This code is due to open in control circuit or opened filament of lamp component.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring |
•
Open in engine check lamp
•
Engine check 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 |
•
4.5 sec. | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | NO | |||
