P1635 2002 Ford F150 Code - Tire / Axle Ratio Out of Acceptable Range
Quick Answer
The P1635 diagnostic trouble code (DTC) for a 2002 Ford F150 indicates that the tire or axle ratio is out of an acceptable range. Common causes include Incorrect tire size installed, Aftermarket modifications to the axle ratio, Faulty wheel speed sensors. 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
- P1635 2002 Ford F150 indicates Tire / Axle Ratio Out of Acceptable Range.
- Common causes
- Common causes include Incorrect tire size installed, Aftermarket modifications to the axle ratio, Faulty wheel speed sensors.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1635 2002 Ford F150 Description
The P1635 diagnostic trouble code (DTC) for a 2002 Ford F150 indicates that the tire or axle ratio is out of an acceptable range. In simpler terms, this means that there is a discrepancy between the expected tire size or axle ratio and what the vehicle's computer is detecting. This can lead to various performance issues and potentially cause long-term damage if not addressed promptly.
Common Causes of P1635 2002 Ford F150
- Incorrect tire size installed
- Aftermarket modifications to the axle ratio
- Faulty wheel speed sensors
- Wiring issues in the ABS system
- Malfunctioning PCM (Powertrain Control Module)
Symptoms of P1635 2002 Ford F150
- Inaccurate speedometer readings
- Decreased fuel efficiency
- Difficulty shifting gears
- Reduced power output
- Illumination of the check engine light
How to Fix P1635 2002 Ford F150
- Verify the correct tire size and axle ratio for the vehicle by consulting the owner's manual or contacting a dealership.
- Inspect the tires to ensure they are the correct size and properly inflated.
- Check the axle ratio by inspecting the differential or consulting the vehicle's build sheet.
- Scan the vehicle's computer for any stored codes and reset the system to see if the code returns.
- If the issue persists, consult a professional mechanic to diagnose and repair any underlying issues with the ABS system, wheel speed sensors, or PCM.
Cost to Fix P1635 2002 Ford F150
The cost of repairing a P1635 code on a 2002 Ford F150 can vary depending on the underlying cause of the issue. On average, the repair costs for this type of problem can range from $100 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate before proceeding with the repair.
Need more information about the P1635 2002 Ford F150 code?
Need more information on how to fix the P1635 2002 Ford F150 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1635 2002 Ford F150 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1635 2002 Ford F150 Code
What does OBDII code P1635 mean for a 2002 Ford F150?
OBDII code P1635 indicates that the tire or axle ratio is out of the acceptable range, which can affect the vehicle's performance and fuel efficiency.
What symptoms might indicate a P1635 code?
Common symptoms include the check engine light being illuminated, inaccurate speedometer readings, and potential issues with transmission shifting.
What are the common causes of the P1635 code?
Causes can include incorrect tire size, a mismatch between the tire size and the axle ratio, or a faulty vehicle speed sensor.
How can I check if my tire size is causing the P1635 code?
You can verify your tire size by checking the specifications on the driver's side door jamb or the owner’s manual and comparing them to the original equipment tire size.
Is it safe to drive my 2002 Ford F150 with a P1635 code?
While it may be safe to drive, the vehicle may experience poor performance, reduced fuel economy, and potential transmission issues, so it’s best to address the code promptly.
What repairs should I consider if I get a P1635 code?
You should check and possibly replace tires to ensure they match the recommended size, verify the axle ratio, and inspect the vehicle speed sensor for any faults.
Can a faulty speedometer cause a P1635 code?
Yes, a faulty speedometer can lead to incorrect readings, which may trigger the P1635 code if the system detects a discrepancy in the tire or axle ratio.
How do I reset the P1635 code after repairs?
You can reset the code by using an OBDII scanner to clear the trouble codes, or by disconnecting the battery for a few minutes, but ensure the underlying issue is resolved first.
Will changing the axle ratio affect the P1635 code?
Yes, changing the axle ratio to match the specifications of your vehicle can help resolve the P1635 code if the current ratio is incorrect.
Discuss the causes and fixes for P1635 2002 Ford F150 OBDII Code
Code P1635 2002 Ford F150 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.