P1549 Ford Code - Intake Manifold Communication Control Circuit Malfunction
Quick Answer
With the key ON or engine running, the Powertrain Control Module (PCM) detects a fault in the Intake Manifold Communication Control (IMCC) or ITV control circuit Common causes include Faulty Intake Manifold Temperature Valve, Intake Manifold Temperature Valve harness is open or shorted, Intake Manifold Temperature Valve 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
- P1549 Ford indicates Intake Manifold Communication Control Circuit Malfunction.
- Common causes
- Common causes include Faulty Intake Manifold Temperature Valve, Intake Manifold Temperature Valve harness is open or shorted, Intake Manifold Temperature Valve 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 P1549 Ford Description
What are the Possible Causes of the DTC P1549 Ford?
- Faulty Intake Manifold Temperature Valve
- Intake Manifold Temperature Valve harness is open or shorted
- Intake Manifold Temperature Valve circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1549 Ford?
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 P1549 Ford 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 P1549 Ford code?
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Information for Specific Ford Models
- P1549 1997 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
- P1549 1998 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
- P1549 1999 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
- P1549 2000 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
- P1549 2001 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
- P1549 2002 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
- P1549 2003 Ford F150 — Intake Manifold Communication Control Circuit Malfunction
Frequently Asked Questions about P1549 Ford Code
1. What are the common symptoms of OBDII code P1549 in a Ford vehicle?
The common symptoms of code P1549 include rough idling, engine misfires, loss of power, and illuminated Check Engine Light.
2. What does the OBDII code P1549 Ford indicate?
Code P1549 indicates an Intake Manifold Communication Control Circuit Malfunction in the vehicle's engine.
3. What are the possible causes of the Intake Manifold Communication Control Circuit malfunction?
Possible causes of the P1549 code include a faulty intake manifold runner control (IMRC) actuator, damaged wiring or connectors, or a defective IMRC module.
4. How can I diagnose the cause of the Intake Manifold Communication Control Circuit malfunction?
Diagnosing the P1549 code involves checking the IMRC actuator for proper operation, inspecting the wiring and connectors for damage, and testing the IMRC module for faults using a scan tool.
5. Can driving with the P1549 code cause further damage to the vehicle?
Continued driving with the P1549 code may lead to reduced engine performance, decreased fuel efficiency, and potential damage to other engine components over time.
6. How can I repair the Intake Manifold Communication Control Circuit malfunction?
Repairing the P1549 code typically involves replacing the faulty IMRC actuator, repairing damaged wiring or connectors, or replacing the defective IMRC module as needed.
7. Is it safe to continue driving with the Check Engine Light on due to code P1549?
It is generally not recommended to drive with the Check Engine Light on, as the underlying issue causing the P1549 code could worsen and lead to more severe problems if left unchecked.
8. Can I reset the OBDII code P1549 Ford without fixing the underlying issue?
While clearing the code can temporarily turn off the Check Engine Light, the underlying issue causing the P1549 code will persist until properly diagnosed and repaired.
9. How much does it typically cost to repair the Intake Manifold Communication Control Circuit malfunction?
The cost of repairing the P1549 code can vary depending on the specific cause of the issue, but it may range from $200 to $500 including parts and labor.
10. Can I prevent the occurrence of code P1549 in my Ford vehicle?
Regular maintenance, such as checking and cleaning the intake manifold components, inspecting wiring for damage, and addressing any engine performance issues promptly, can help prevent the occurrence of the P1549 code.
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