P1779 Mercury Code - Transmission Control Indicator Lamp Circuit Malfunction
Quick Answer
The Powertrain Control Module (PCM) monitors the Transmission Control Indicator Lamp. Common causes include Faulty Transmission Control Indicator Lamp, Transmission Control Indicator Lamp harness is open or shorted, Transmission Control Indicator Lamp 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
- P1779 Mercury indicates Transmission Control Indicator Lamp Circuit Malfunction.
- Common causes
- Common causes include Faulty Transmission Control Indicator Lamp, Transmission Control Indicator Lamp harness is open or shorted, Transmission Control Indicator Lamp 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 P1779 Mercury Description
What are the Possible Causes of the DTC P1779 Mercury?
- Faulty Transmission Control Indicator Lamp
- Transmission Control Indicator Lamp harness is open or shorted
- Transmission Control Indicator Lamp circuit poor electrical connection
How to Fix the DTC P1779 Mercury?
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 P1779 Mercury 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 P1779 Mercury Code
1. What are common symptoms of OBDII code P1779 in a Mercury vehicle?
The common symptoms of OBDII code P1779 in a Mercury vehicle include the transmission control indicator lamp (TCIL) staying illuminated on the dashboard, transmission shifting issues, and potential loss of power.
2. What can cause the OBDII code P1779 to trigger in a Mercury?
The OBDII code P1779 in a Mercury is typically triggered by a malfunction in the transmission control indicator lamp (TCIL) circuit. This can be caused by issues such as a faulty TCIL bulb, damaged wiring, or a problem with the transmission control module.
3. How serious is the OBDII code P1779 in a Mercury?
While the OBDII code P1779 itself may not directly affect the drivability of the vehicle, it is important to address the underlying issue causing the malfunction in the TCIL circuit. Ignoring this code could potentially lead to more severe transmission problems in the future.
4. Can I continue driving my Mercury with the OBDII code P1779 present?
It is generally not recommended to continue driving your Mercury with the OBDII code P1779 present, as it indicates a malfunction in the transmission control indicator lamp circuit. It is best to have the issue diagnosed and repaired as soon as possible.
5. How can I diagnose the OBDII code P1779 in my Mercury at home?
Diagnosing the OBDII code P1779 in your Mercury may require a scan tool to retrieve the code and further testing to pinpoint the exact cause. Checking the TCIL bulb, inspecting the wiring for damage, and testing the transmission control module are some steps you can take at home.
6. What are some repair tips for fixing the OBDII code P1779 in a Mercury?
Repairing the OBDII code P1779 in a Mercury may involve replacing a faulty TCIL bulb, repairing damaged wiring, or replacing the transmission control module if necessary. It is recommended to consult a professional mechanic for accurate diagnosis and repair.
7. Can a DIY enthusiast fix the OBDII code P1779 in a Mercury?
While some DIY enthusiasts may have the skills to diagnose and repair the OBDII code P1779 in a Mercury, it is a complex issue that may require specialized tools and expertise. If you are not experienced in automotive repairs, it is best to seek professional help.
8. How much does it cost to repair the OBDII code P1779 in a Mercury?
The cost of repairing the OBDII code P1779 in a Mercury can vary depending on the underlying issue causing the malfunction. Costs may include parts, labor, and diagnostic fees, so it is best to obtain quotes from different mechanics or repair shops.
9. Will resetting the OBDII code P1779 in my Mercury make it go away permanently?
Resetting the OBDII code P1779 in your Mercury may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to return. It is important to diagnose and repair the root cause to prevent future problems.
10. How long does it take to repair the OBDII code P1779 in a Mercury?
The time it takes to repair the OBDII code P1779 in a Mercury can vary depending on the exact cause of the issue and the complexity of the repair. Simple fixes like replacing a bulb may take less time, while more extensive repairs could require a longer duration.
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