Intake Air Heater Over Temperature
Table of contents
P166B BUICK Possible Causes
- Faulty Intake Air (IA) Heater
- Intake Air (IA) Heater harness is open or shorted
- Intake Air (IA) Heater circuit poor electrical connection
How do I fix code P166B 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 P166B BUICK code
The cost of diagnosing the P166B 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)
P166B BUICK Description
The Engine Control Module (ECM) monitors the Intake Air (IA) Heater. The ECM sets the OBDII code when the Intake Air (IA) Heater is not to factory specifications.