MIL Control Circuit Conditions
Table of contents
P1661 BUICK Possible Causes
- Faulty Malfunction Indicator Lamp (MIL)
- Malfunction Indicator Lamp (MIL) harness is open or shorted
- Malfunction Indicator Lamp (MIL) circuit poor electrical connection
How do I fix code P1661 BUICK?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1661 BUICK code
The cost of diagnosing the P1661 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1661 BUICK Description
With the engine speed over 600 rpm, the Powertrain Control Module (PCM) detects that the Actual and Commanded state of the MIL Control circuit did not match, condition met for over 5 seconds.