AutoCodes – Generic – P1482

P1482 Code - Cooling Fan Circuit Condition

Quick Answer

The engine cooling fan is a variable speed fan. Common causes include Faulty Fan Clutch Assembly, Fan Clutch Assembly harness is open or shorted, Fan Clutch Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1482 indicates Cooling Fan Circuit Condition.
Common causes: Common causes include Faulty Fan Clutch Assembly, Fan Clutch Assembly harness is open or shorted, Fan Clutch Assembly circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 25,764

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1482 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.

OBDII Code P1482 - Cooling Fan Circuit Condition - AutoCodes.com — P1482 Code - Cooling Fan Circuit Condition

What does this mean?

What are the Possible Causes of the DTC P1482?

Faulty Fan Clutch Assembly
Fan Clutch Assembly harness is open or shorted
Fan Clutch Assembly circuit poor electrical connection

How to Fix the DTC P1482?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1482 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1482 code?

Need more information on how to fix the P1482 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1482 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1482 Audi — Secondary Air Injection Pump Relay 2 Short To B+
P1482 Buick — Cooling Fan Circuit Condition
P1482 Cadillac — Cooling Fan Circuit Condition
P1482 Chevrolet — Cooling Fan Circuit Condition
P1482 Dodge — Glow Plug Module Internal Fault
P1482 Ford — SCP
P1482 GMC — Cooling Fan Circuit Condition
P1482 Isuzu — Cooling Fan Speed Output Circuit
P1482 Land Rover — Leak Detection Pump Heater Circuit
P1482 Oldsmobile — Cooling Fan Circuit Condition
P1482 Volkswagen — Secondary Air Injection Pump Relay 2 Short To B+

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1482 Code

1. What does the OBDII code P1482 mean?

P1482 refers to a fault in the cooling fan circuit, indicating a potential issue with the fan's electrical system or control module.

2. What are the common symptoms of code P1482?

Symptoms include engine overheating, the cooling fan not operating, and possibly an illuminated check engine light.

3. What causes the P1482 code to appear?

Common causes include a faulty cooling fan motor, damaged wiring or connectors, a failed relay, or issues with the fan control module.

4. Can I drive my car with the P1482 code?

Driving with this code is not recommended, as the cooling fan may fail to prevent overheating, which can lead to engine damage.

5. How do I diagnose the P1482 code?

Diagnosis typically involves checking the cooling fan operation, inspecting wiring and connectors for damage, testing the relay, and verifying the functionality of the fan control module.

6. How do I fix the P1482 code?

Repairs may include replacing the cooling fan motor, repairing damaged wiring, replacing a faulty relay, or addressing issues with the fan control module.

7. Can a blown fuse cause the P1482 code?

Yes, a blown fuse in the cooling fan circuit can cause this code due to interrupted power supply to the fan system.

8. Does the P1482 code always require replacing the cooling fan?

No, the issue might be related to wiring, relays, or control modules rather than the fan itself, so proper diagnostics are essential.

9. How much does it cost to repair the P1482 code?

Repair costs depend on the specific issue but typically range from $100 for a relay replacement to $500 or more if the cooling fan motor needs replacement.

10. Can a faulty thermostat trigger the P1482 code?

A faulty thermostat is unlikely to directly cause this code but could contribute to overheating if the cooling fan circuit is also compromised.