Engine-CodesFord – P1245 2008 Ford Focus

P1245 2008 Ford Focus Code - Alternator Load Input Failed Low

Quick Answer

The diagnostic trouble code P1245 for a 2008 Ford Focus indicates that the alternator load input has failed low. Common causes include Faulty voltage regulator in the alternator, Damaged diode in the alternator, Loose or corroded electrical connections. 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
P1245 2008 Ford Focus indicates Alternator Load Input Failed Low.
Common causes
Common causes include Faulty voltage regulator in the alternator, Damaged diode in the alternator, Loose or corroded electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P1245 2008 Ford Focus Description

The diagnostic trouble code P1245 for a 2008 Ford Focus indicates that the alternator load input has failed low. This means that the vehicle's onboard computer system has detected a lower than expected voltage input from the alternator, which is responsible for charging the battery and providing electrical power to the vehicle when the engine is running. This issue can lead to various electrical problems within the vehicle and ultimately affect its overall performance.

OBDII Code P1245 2008 Ford Focus - Alternator Load Input Failed Low
P1245 2008 Ford Focus Code - Alternator Load Input Failed Low

Common Causes of P1245 2008 Ford Focus

  1. Faulty voltage regulator in the alternator
  2. Damaged diode in the alternator
  3. Loose or corroded electrical connections
  4. Worn-out alternator belt or pulley

Symptoms of P1245 2008 Ford Focus

  1. Difficulty starting the vehicle or frequent battery drain
  2. Flickering lights or erratic behavior of electrical components
  3. Vehicle stalling while driving
  4. Dashboard warning light indicating a charging system issue

How to Fix P1245 2008 Ford Focus

  1. Begin by inspecting the alternator and its components for any visible signs of damage or wear.
  2. Test the alternator's voltage output using a multimeter to determine if it is functioning within the manufacturer's specifications.
  3. Check and tighten any loose electrical connections between the alternator and the vehicle's electrical system.
  4. Replace the alternator if the voltage output is below the recommended levels or if any internal components are found to be faulty.
  5. Finally, reset the vehicle's onboard computer system to clear the diagnostic trouble code and ensure that the issue has been resolved.

Cost to Fix P1245 2008 Ford Focus

The cost estimate for repairing an alternator load input failure on a 2008 Ford Focus can vary depending on the specific cause of the issue and the parts needed for repair. On average, the cost of replacing an alternator and addressing associated electrical problems can range from $300 to $600, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a detailed quote from a trusted mechanic before proceeding with the repair.

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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.

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