AutoCodes – Lincoln – B1318 Lincoln

B1318 Lincoln 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 Lincoln 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.
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Code Popularity 4,730
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 29, 2024
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Code B1318 Lincoln Description

With the engine running, the charging system supplies voltage to the battery and the vehicle electrical system through the battery B+ cable. The voltage that is supplied to the vehicle electrical system is used for the operation of the various vehicle systems and modules. Many modules monitor this voltage and if it rises above or below their calibrated setpoints, a Diagnostic Trouble Code (DTC) sets.
OBDII Code B1318 Lincoln - Battery Voltage Low - AutoCodes.com
B1318 Lincoln Code - Battery Voltage Low

What are the Possible Causes of the DTC B1318 Lincoln?

  • 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 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1318 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.

Need more information about the B1318 Lincoln code?

Need more information on how to fix the B1318 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1318 Lincoln code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1318 Lincoln Code

1. What does OBDII code B1318 Lincoln indicate?

The B1318 code in a Lincoln vehicle signals that the battery voltage is lower than the expected threshold.

2. What are the common symptoms of OBDII code B1318?

Common symptoms of B1318 may include a weak or dead battery, difficulty starting the vehicle, dimming headlights, and issues with electrical components.

3. What are the possible causes of OBDII code B1318 in a Lincoln?

Causes of the B1318 code can range from a faulty battery or alternator, loose or corroded battery connections, to a malfunctioning voltage regulator or charging system.

4. How can I diagnose OBDII code B1318 in my Lincoln?

To diagnose the B1318 code, you can start by checking the battery voltage with a multimeter, inspecting the battery connections, testing the alternator output, and scanning the vehicle's electrical system for any faults.

5. Is it safe to continue driving with OBDII code B1318 active?

It is not recommended to drive with the B1318 code present, as it can lead to further electrical issues and potential breakdowns due to a low battery voltage.

6. What are some repair tips for fixing OBDII code B1318 in a Lincoln?

Repair tips for B1318 may include charging or replacing the battery, checking and cleaning the battery terminals, inspecting the alternator for proper functioning, and addressing any wiring or component issues.

7. Can a DIY enthusiast fix OBDII code B1318 at home?

Depending on your skill level and access to tools, DIY enthusiasts may be able to address the B1318 code by following repair guides, conducting basic electrical tests, and replacing faulty components like the battery or alternator.

8. Will resetting the OBDII system clear the B1318 code in a Lincoln?

Resetting the OBDII system may temporarily clear the B1318 code, but if the underlying issue causing the low battery voltage is not addressed, the code is likely to reappear.

9. Should I seek professional help for OBDII code B1318 if I'm not familiar with automotive repairs?

If you are not experienced in automotive repairs, it is advisable to seek professional help to diagnose and fix the B1318 code to ensure proper repair and prevent further damage to the vehicle's electrical system.

10. How much does it typically cost to repair OBDII code B1318 in a Lincoln at a mechanic's shop?

The cost of repairing the B1318 code can vary depending on the specific issue causing the low battery voltage, but it may involve expenses for parts, labor, and diagnostic services, with an average range of $100 to $500.

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