P1635 2011 Ford Fusion Code - Tire / Axle Ratio Out of Acceptable Range
Quick Answer
The P1635 diagnostic trouble code (DTC) for a 2011 Ford Fusion indicates that the tire or axle ratio is out of an acceptable range. Common causes include Faulty wheel speed sensors, Damaged or corroded wiring/connectors related to the wheel speed sensors, Incorrect tire size or inflation pressure. 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 2011 Ford Fusion indicates Tire / Axle Ratio Out of Acceptable Range.
- Common causes
- Common causes include Faulty wheel speed sensors, Damaged or corroded wiring/connectors related to the wheel speed sensors, Incorrect tire size or inflation pressure.
- 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 P1635 2011 Ford Fusion Description
The P1635 diagnostic trouble code (DTC) for a 2011 Ford Fusion indicates that the tire or axle ratio is out of an acceptable range. This code typically points to an issue with the vehicle's traction control system, specifically related to the wheel speed sensors. The wheel speed sensors are responsible for monitoring the speed of each wheel and sending this information to the vehicle's computer system. When the computer detects a discrepancy in the wheel speeds, it may trigger the P1635 code.
Common Causes of P1635 2011 Ford Fusion
- Faulty wheel speed sensors
- Damaged or corroded wiring/connectors related to the wheel speed sensors
- Incorrect tire size or inflation pressure
- Malfunctioning traction control module
- Issues with the vehicle's differential or axle components
Symptoms of P1635 2011 Ford Fusion
- Illuminated traction control or ABS warning lights on the dashboard
- Loss of traction or stability while driving, especially on slippery surfaces
- Uneven tire wear or abnormal tire pressure readings
- Difficulty engaging or disengaging the traction control system
How to Fix P1635 2011 Ford Fusion
- Begin by connecting a diagnostic scanner to the vehicle's onboard computer to retrieve the specific trouble code (P1635) and any related codes.
- Inspect the wheel speed sensors and their wiring for any signs of damage, corrosion, or loose connections. Replace or repair as necessary.
- Verify that the tires are the correct size and properly inflated according to the manufacturer's specifications.
- Test the traction control system and perform a recalibration if needed to ensure proper functionality.
- Clear the DTCs from the vehicle's computer memory and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P1635 2011 Ford Fusion
The typical repair costs for addressing a P1635 code on a 2011 Ford Fusion can vary depending on the specific cause of the issue. In general, replacing a faulty wheel speed sensor or repairing wiring/connectors may cost between $100 and $300, including parts and labor. If the traction control module needs to be replaced, the cost could range from $200 to $500 or more. Additional costs may apply if other components, such as the differential or axles, require attention. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.
Tech Notes for P1635 2011 Ford Fusion
After a new Powertrain Control Module (PCM) has been installed, the Vehicle Identification (VID) block must be programmed into the PCM.
There is a Factory Service Bulletin for the 2011 Ford Fusion
2011 Ford Fusion Factory Service Bulletin OBDII Code P1635
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Frequently Asked Questions about P1635 2011 Ford Fusion Code
1. What does OBDII code P1635 on a 2011 Ford Fusion indicate?
The code P1635 on a 2011 Ford Fusion signifies that the Tire / Axle Ratio is out of an acceptable range.
2. What are the common symptoms of OBDII code P1635 in a 2011 Ford Fusion?
Common symptoms of code P1635 in a 2011 Ford Fusion may include issues with the vehicle's transmission shifting, incorrect speedometer readings, and the illumination of the Check Engine Light.
3. What can cause the OBDII code P1635 to trigger in a 2011 Ford Fusion?
The Tire / Axle Ratio Out of Acceptable Range code (P1635) in a 2011 Ford Fusion can be triggered by a mismatch between the tire size and axle ratio, a faulty speed sensor, or issues with the vehicle's transmission control module.
4. How can I diagnose the cause of OBDII code P1635 in my 2011 Ford Fusion?
To diagnose the cause of code P1635 in a 2011 Ford Fusion, you may need to check the tire size and axle ratio compatibility, inspect the speed sensor for any damage, and perform a scan of the vehicle's transmission control module for any faults.
5. Can I continue driving my 2011 Ford Fusion with OBDII code P1635?
It is not recommended to continue driving your 2011 Ford Fusion with the P1635 code unresolved, as it can lead to potential transmission issues and inaccurate speedometer readings.
6. How can I repair OBDII code P1635 in my 2011 Ford Fusion?
To repair code P1635 in a 2011 Ford Fusion, you may need to correct the tire size and axle ratio mismatch, replace a faulty speed sensor, or reprogram the transmission control module to ensure proper communication.
7. Is it necessary to reset the OBDII code P1635 after repairs on a 2011 Ford Fusion?
After addressing the underlying issue causing code P1635 in a 2011 Ford Fusion, it is recommended to clear the code using an OBDII scanner to reset the Check Engine Light and ensure the repair was successful.
8. Will OBDII code P1635 affect the fuel efficiency of my 2011 Ford Fusion?
While code P1635 directly relates to the tire / axle ratio and transmission operation, unresolved issues can impact the overall performance of your 2011 Ford Fusion, potentially affecting fuel efficiency.
9. Can a DIY enthusiast fix OBDII code P1635 in a 2011 Ford Fusion?
Depending on the root cause of code P1635, some DIY enthusiasts with automotive repair knowledge may be able to address the issue themselves by performing tasks like checking tire size compatibility or replacing a speed sensor.
10. How much does it typically cost to repair OBDII code P1635 on a 2011 Ford Fusion?
The cost to repair code P1635 on a 2011 Ford Fusion can vary based on the specific cause of the issue, but it may involve expenses for parts like a speed sensor or potential labor charges if professional assistance is required for diagnosis and repair.
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