P1479 Lincoln Code - High Fan Control Primary Circuit
Quick Answer
Monitors the High Fan Control (HFC) primary circuit output from the Powertrain Control Module (PCM). Common causes include Faulty Cooling Fan, Cooling Fan harness is open or shorted, Cooling Fan 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
- P1479 Lincoln indicates High Fan Control Primary Circuit.
- Common causes
- Common causes include Faulty Cooling Fan, Cooling Fan harness is open or shorted, Cooling Fan 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.
Code P1479 Lincoln Description
What are the Possible Causes of the DTC P1479 Lincoln?
- Faulty Cooling Fan
- Cooling Fan harness is open or shorted
- Cooling Fan circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1479 Lincoln?
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 P1479 Lincoln 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.
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Frequently Asked Questions about P1479 Lincoln Code
1. What does the OBDII code P1479 mean for a Lincoln vehicle?
Code P1479 indicates an issue with the high-speed fan control primary circuit, which is responsible for operating the cooling fan at high speed.
2. What are the common symptoms of code P1479 in a Lincoln?
Symptoms may include engine overheating, a non-functioning cooling fan, and possibly the check engine light illuminating.
3. What causes the P1479 code on a Lincoln?
Common causes include a faulty cooling fan relay, damaged wiring or connectors in the fan circuit, or a malfunctioning powertrain control module (PCM).
4. Can the P1479 code lead to engine damage?
Yes, if the high-speed cooling fan does not function properly, the engine may overheat, potentially causing significant damage.
5. How can I diagnose the P1479 code on my Lincoln?
Start by inspecting the cooling fan relay, wiring, and connectors for damage. Use a multimeter to test electrical continuity and verify the operation of the cooling fan.
6. Is it safe to drive with the P1479 code in a Lincoln?
Driving with this code is not recommended, as overheating can occur, leading to engine damage or failure.
7. How do I fix the P1479 code on a Lincoln?
Repairs may include replacing the cooling fan relay, repairing damaged wiring or connectors, or, in rare cases, replacing the PCM.
8. Can a faulty PCM cause the P1479 code in a Lincoln?
Yes, while less common, a malfunctioning PCM can fail to properly control the high-speed fan circuit, triggering this code.
9. How much does it cost to repair the P1479 code on a Lincoln?
Repair costs vary but typically range from $100 to $300 for parts and labor, depending on the specific issue.
10. Will clearing the P1479 code fix the problem?
No, clearing the code will not fix the underlying issue. Proper diagnosis and repair are necessary to prevent the code from returning.
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