AutoCodes – Ford – P1245 1998 Ford F150

P1245 1998 Ford F150 Code - Alternator Load Input Failed Low

Quick Answer

The Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. Common causes include Faulty Alternator/Generator, Broken Alternator Belt, Alternator/Generator harness is open or shorted. 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 1998 Ford F150 indicates Alternator Load Input Failed Low.
Common causes: Common causes include Faulty Alternator/Generator, Broken Alternator Belt, Alternator/Generator harness is open or shorted.
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 2,834

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1245 1998 Ford F150 Description

The Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. The fault indicates the input is lower than the load should be in normal operation. The load input could be low when no generator output exists.

OBDII Code P1245 1998 Ford F150 - Alternator Load Input Failed Low - AutoCodes.com — P1245 1998 Ford F150 Code - Alternator Load Input Failed Low

What does this mean?

What are the Possible Causes of the DTC P1245 1998 Ford F150?

Faulty Alternator/Generator
Broken Alternator Belt
Alternator/Generator harness is open or shorted
Alternator/Generator circuit poor electrical connection
Damaged Powertrain Control Module (PCM)

How to Fix the DTC P1245 1998 Ford F150?

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 P1245 1998 Ford F150 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 P1245 1998 Ford F150 code?

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Need Help with the Code?

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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.

Frequently Asked Questions about P1245 1998 Ford F150 Code

1. What are the common symptoms of OBDII code P1245 on a 1998 Ford F150?

The common symptoms of OBDII code P1245 on a 1998 Ford F150 include dimming headlights, battery warning light on the dashboard, and potential issues with electrical components.

2. What does the OBDII code P1245 on a 1998 Ford F150 indicate?

OBDII code P1245 on a 1998 Ford F150 indicates that the alternator load input has failed low, meaning the vehicle's onboard computer is not receiving the expected input signal from the alternator.

3. What are the possible causes of OBDII code P1245 on a 1998 Ford F150?

Possible causes of OBDII code P1245 on a 1998 Ford F150 include a faulty alternator, damaged wiring or connectors in the alternator circuit, or a malfunctioning alternator load input sensor.

4. Can driving with OBDII code P1245 on a 1998 Ford F150 cause further damage?

Continuing to drive with OBDII code P1245 on a 1998 Ford F150 may lead to battery drain, electrical system malfunctions, and eventually, the vehicle stalling due to insufficient power supply.

5. How can I diagnose and repair OBDII code P1245 on a 1998 Ford F150?

To diagnose and repair OBDII code P1245 on a 1998 Ford F150, start by checking the alternator, inspecting the wiring and connectors for damage, and testing the alternator load input sensor. Replace any faulty components as needed.

6. Is it safe to continue driving my 1998 Ford F150 with OBDII code P1245?

It is not recommended to continue driving your 1998 Ford F150 with OBDII code P1245, as it can lead to battery drainage and potential electrical system failures. It's best to address the issue promptly.

7. Can OBDII code P1245 on a 1998 Ford F150 be reset without fixing the underlying issue?

Resetting OBDII code P1245 on a 1998 Ford F150 without fixing the underlying issue will temporarily clear the code, but the problem will likely reoccur. It's important to diagnose and address the root cause of the code.

8. How much does it typically cost to repair OBDII code P1245 on a 1998 Ford F150?

The cost to repair OBDII code P1245 on a 1998 Ford F150 can vary depending on the specific cause of the issue, but it may range from $200 to $500 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P1245 on a 1998 Ford F150?

A DIY enthusiast with mechanical knowledge and the right tools can attempt to fix OBDII code P1245 on a 1998 Ford F150 by following a repair manual or online guides. However, if unsure, it's best to consult a professional mechanic.

10. How urgent is it to address OBDII code P1245 on a 1998 Ford F150?

It is important to address OBDII code P1245 on a 1998 Ford F150 promptly to prevent potential damage to the electrical system, battery, and overall vehicle performance.