Cooling Fan Circuit Condition
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P1482 OLDSMOBILE Possible Causes
- Faulty Fan Clutch Assembly
- Fan Clutch Assembly harness is open or shorted
- Fan Clutch Assembly circuit poor electrical connection
How do I fix code P1482 OLDSMOBILE?
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.
Tech Notes
User Submitted Video
Cost of diagnosing the P1482 OLDSMOBILE code
The cost of diagnosing the P1482 OLDSMOBILE 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.
When is the code detected
The Engine Control Module (ECM) has detected an improper circuit condition on the cooling fan clutch control circuit
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1482 OLDSMOBILE Description
The engine cooling fan is a variable speed fan. The Engine Control Module (ECM) controls the fan speed by sending a pulse width modulated signal to the cooling fan speed control module. The cooling fan control module varies the voltage drop across the engine cooling fan motor in relation to the pulse width modulated signal. The cooling fan speed is affected by many different conditions and can be adjusted from 10-90 percent duty cycle. Ninety percent is considered high fan speed. When multiple cooling speed requests are received, the ECM uses the highest cooling fan speed of all the requests. During normal fan ON operation, the control circuit voltage will be low and near battery voltage when the fan is OFF.
