P2318 Mercury Code - Ignition Coil 'G' Primary Control Circuit Low
Quick Answer
The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. Common causes include Faulty Ignition Coil 'G', Ignition Coil 'G' harness is open or shorted, Ignition Coil 'G' 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
- P2318 Mercury indicates Ignition Coil 'G' Primary Control Circuit Low.
- Common causes
- Common causes include Faulty Ignition Coil 'G', Ignition Coil 'G' harness is open or shorted, Ignition Coil 'G' 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 P2318 Mercury Description
What are the Possible Causes of the DTC P2318 Mercury?
- Faulty Ignition Coil 'G'
- Ignition Coil 'G' harness is open or shorted
- Ignition Coil 'G' circuit poor electrical connection
How to Fix the DTC P2318 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 P2318 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 P2318 Mercury Code
1. What are the common symptoms of OBDII code P2318 in a Mercury related to the Ignition Coil 'G' Primary Control Circuit Low?
Symptoms may include engine misfires, rough idling, lack of power, and illuminated check engine light.
2. What are the possible causes of OBDII code P2318 in a Mercury that indicates an issue with the Ignition Coil 'G' Primary Control Circuit Low?
Potential causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM).
3. How can I diagnose the issue causing OBDII code P2318 in my Mercury related to the Ignition Coil 'G' Primary Control Circuit Low?
You can use a scan tool to check for the code, visually inspect the wiring and connectors for damage, test the ignition coil for proper functioning, and perform a circuit test to identify any issues.
4. Can I continue driving my Mercury with OBDII code P2318 indicating a problem with the Ignition Coil 'G' Primary Control Circuit Low?
It is not recommended to drive the vehicle with this code present, as it can lead to more serious engine issues and potential damage if left unresolved.
5. How can I repair OBDII code P2318 in my Mercury related to the Ignition Coil 'G' Primary Control Circuit Low?
Repair options may include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, and resetting the ECM after the issue has been resolved.
6. Is it possible to clear OBDII code P2318 in my Mercury without fixing the underlying issue with the Ignition Coil 'G' Primary Control Circuit Low?
Clearing the code without addressing the root cause is not recommended, as the problem will likely persist and could lead to further complications down the line.
7. Can a DIY enthusiast fix OBDII code P2318 indicating a problem with the Ignition Coil 'G' Primary Control Circuit Low in a Mercury?
Depending on the DIYer's skill level and access to tools, it may be possible to address this issue by following repair guides and utilizing proper diagnostic equipment.
8. How much does it typically cost to repair OBDII code P2318 in a Mercury related to the Ignition Coil 'G' Primary Control Circuit Low?
Repair costs can vary depending on the extent of the issue, parts needed for replacement, and labor rates at the repair shop, but it's advisable to get estimates from local mechanics.
9. Are there any preventative maintenance tips to help avoid encountering OBDII code P2318 in a Mercury due to Ignition Coil 'G' Primary Control Circuit Low issues?
Regularly inspecting and maintaining the ignition system, replacing spark plugs and ignition coils at recommended intervals, and addressing any engine performance issues promptly can help prevent this code from appearing.
10. How long does it typically take to resolve OBDII code P2318 in a Mercury indicating a problem with the Ignition Coil 'G' Primary Control Circuit Low?
The time needed for repair can vary based on the specific issue, availability of parts, and the expertise of the mechanic, but it's advisable to address the problem as soon as possible to avoid further complications.
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