Engine-Codes - Generic - B1318

B1318 Code - Battery Voltage Low

- Code Popularity: 85,480 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1318?

  • 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 B1318 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Code B1318 Tech Notes

According to the 1996 Ford Explorer factory service manual, the B1317 and B1318 codes depend on which module the code was generated.

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 B1318?

Labor: 1.0

The cost to diagnose the B1318 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code B1318 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B1318 Code Mean?

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.

B1318 Code - Battery Voltage Low

|Need more Information on the B1318 Code?

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

|Code B1318 Information for Specific Makes

|Need Help with the B1318 Code?

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