Circuit Description
The electronic throttle control motor controls the idle speed by allowing a
controlled amount of air to enter the intake manifold. Actual idle speed is continuously
compared to commanded idle speed. This code will set if the actual speed is at least
200 rpm greater than the desired value or if the vehicle has experienced fuel
cut-off more than three times during one idle period.
DTC Parameters
This code will set when the following conditions have been met:
• | IAT greater than 34°C (93°F) |
• | ECT greater than 80°C (176°F) |
• | EVAP diagnostic not running |
• | AIR system diagnostic not running |
• | Vehicle speed is less than 5 km/h (3 mph) |
• | Actual engine rpm is 200 rpm higher than desired idle rpm |
• | No ECT, EVAP, IAT, TP, or VSS DTCs set |
P0507 is a (type B) DTC.
Diagnostic Aids
Verify this condition is not caused by the throttle body or a vacuum leak.
Check for a poor connection at the ECM or at the component.
Check for a damaged harness.