P1480 CADILLAC - Cooling Fan 1 Control Circuit High
Repair Importance Level:
Repair Difficulty Level:
P1480 CADILLAC Possible Causes
- Faulty Fan Clutch Assembly
- Fan Clutch Assembly harness is open or shorted
- Fan Clutch Assembly circuit poor electrical connection
First diagnose P1480 CADILLAC code
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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 terminals.
Cost of diagnosing the P1480 CADILLAC code
Labor: 1.0
The cost of diagnosing the P1480 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.When is the P1480 CADILLAC code detected?
The Engine Control Module (ECM) has detected an improper circuit condition on the cooling fan clutch control circuitP1480 CADILLAC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1480 CADILLAC Meaning
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.
P1480 CADILLAC More Information
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