AutoCodes – Ford – P1245 1997 Ford F150

P1245 1997 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 1997 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 1,864

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 1997 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 1997 Ford F150 - Alternator Load Input Failed Low - AutoCodes.com — P1245 1997 Ford F150 Code - Alternator Load Input Failed Low

What does this mean?

What are the Possible Causes of the DTC P1245 1997 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 1997 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 1997 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.

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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 1997 Ford F150 Code

1. What are common symptoms of OBDII code P1245 on a 1997 Ford F150?

- Common symptoms include dimming lights, difficulty starting the vehicle, and a dashboard warning light indicating alternator issues.

2. What does the OBDII code P1245 "Alternator Load Input Failed Low" mean for a 1997 Ford F150?

- This code indicates that the vehicle's powertrain control module (PCM) has detected a low input signal from the alternator in relation to the vehicle's electrical load.

3. What are possible causes of OBDII code P1245 on a 1997 Ford F150?

- Possible causes include a faulty alternator, damaged wiring or connectors in the alternator circuit, a defective battery, or a malfunctioning PCM.

4. How can I diagnose the issue causing OBDII code P1245 on my 1997 Ford F150?

- A thorough inspection of the alternator, battery, and related wiring is recommended. Testing the alternator's output voltage and checking for any loose or damaged connections can help pinpoint the issue.

5. Can driving with OBDII code P1245 on a 1997 Ford F150 cause further damage?

- Continuing to drive with this code may lead to battery draining, electrical system malfunctions, and eventual stalling of the vehicle. It is advisable to address the issue promptly.

6. What are some repair tips for fixing OBDII code P1245 on a 1997 Ford F150?

- Repair tips include checking and replacing the alternator if necessary, inspecting and repairing any damaged wiring or connectors, and ensuring the battery is in good condition.

7. Is it safe to reset the OBDII code P1245 on a 1997 Ford F150 without fixing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause, as the problem will likely reoccur, potentially causing further damage to the vehicle.

8. How much does it typically cost to repair OBDII code P1245 on a 1997 Ford F150?

- The cost of repair can vary depending on the specific issue causing the code. Replacing the alternator or repairing wiring/connectors can range from $200 to $600 or more, including parts and labor.

9. Can I fix OBDII code P1245 on a 1997 Ford F150 myself, or should I seek professional help?

- While some DIY enthusiasts may be able to address the issue themselves, diagnosing and repairing electrical system problems can be complex. It is advisable to consult a professional mechanic for proper diagnosis and repair.

10. How often does OBDII code P1245 occur in 1997 Ford F150 vehicles, and is it a common issue?

- While not as common as some other OBDII codes, P1245 can still occur in 1997 Ford F150 vehicles, especially as they age and components wear out. Proper maintenance and timely repairs can help prevent this issue.