B1318 Mercury Code - Battery Voltage Low
Quick Answer
With the engine running, the charging system supplies voltage to the battery and the vehicle electrical system through the battery B+ cable. Common causes include Battery defective, Loose or missing alternator drive belt, Faulty Alternator. 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
- B1318 Mercury indicates Battery Voltage Low.
- Common causes
- Common causes include Battery defective, Loose or missing alternator drive belt, Faulty Alternator.
- 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 B1318 Mercury Description
What are the Possible Causes of the DTC B1318 Mercury?
- Battery defective
- Loose or missing alternator drive belt
- Faulty Alternator
- Alternator harness is open or shorted
- Alternator circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC B1318 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.
Code Tech Notes
B1317
Four-Wheel Antilock Brake (4WABS) Control Module: Antilock Brake System Problem
Generic Electronic Module (GEM): Battery Voltage High
B1318
Automatic Ride Control (ARC) Module: Suspension Control (Automatic - Electronic Level)
Generic Electronic Module (GEM): Battery Voltage Low
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1318 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.
Need more information about the B1318 Mercury code?
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Need Help with the Code?
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Frequently Asked Questions about B1318 Mercury Code
1. What are the common symptoms of OBDII code B1318 Mercury (Battery Voltage Low)?
The common symptoms of B1318 include dimming lights, difficulty starting the vehicle, and a warning light on the dashboard.
2. What are the possible causes of the B1318 code indicating low battery voltage in a Mercury vehicle?
Possible causes of the B1318 code include a failing alternator, a weak battery, loose or corroded battery connections, or a faulty voltage regulator.
3. How can I diagnose the B1318 code related to low battery voltage in my Mercury?
Diagnosing the B1318 code involves checking the battery voltage with a multimeter, inspecting the alternator for proper functioning, examining battery connections, and testing the voltage regulator.
4. Can a low battery voltage cause other issues in my Mercury besides triggering the B1318 code?
Yes, low battery voltage can lead to various electrical problems in your Mercury, such as issues with the starter, power windows, radio, and other electronic components.
5. What should I do if I encounter the B1318 code in my Mercury indicating low battery voltage?
If you encounter the B1318 code, it is advisable to have your battery and alternator tested by a professional technician to determine the exact cause of the low voltage issue.
6. Are there any quick repair tips for addressing the B1318 code related to low battery voltage in a Mercury?
Quick repair tips for addressing the B1318 code include checking and tightening battery connections, ensuring the battery is in good condition, and inspecting the alternator belt for proper tension.
7. Is it safe to continue driving my Mercury with the B1318 code indicating low battery voltage?
It is not recommended to drive your Mercury with the B1318 code indicating low battery voltage, as it can lead to further electrical issues and potential breakdowns on the road.
8. Can extreme weather conditions affect the battery voltage and trigger the B1318 code in a Mercury?
Yes, extreme weather conditions, especially cold temperatures, can affect battery performance and lead to low voltage issues triggering the B1318 code in your Mercury.
9. How often should I have my battery and charging system checked to prevent issues like the B1318 code in my Mercury?
It is recommended to have your battery and charging system checked at least once a year or as per the manufacturer's recommended maintenance schedule to prevent issues like the B1318 code in your Mercury.
10. What is the typical cost to repair the B1318 code indicating low battery voltage in a Mercury?
The cost to repair the B1318 code can vary depending on the exact cause of the low battery voltage, but it may range from around $100 for a simple battery replacement to several hundred dollars for alternator or voltage regulator repairs.
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