Frequently Asked Questions About 53032456AE / 53032455AD

A: The 53032456AE and 53032455AD sensors fit the following Dodge RAM vehicles:

• 2003-2004 Dodge Ram 1500, 2500, 3500 with 5.7L Hemi motors (all transmissions)
• 2003 Dodge RAM 1500 5.9L V8
• 2003-2004 Dodge RAM 2500 & 3500 with L6 - 5.9 Diesel (manual transmission only)

Our retrofit kit is designed specifically to replace these sensors in these exact vehicle configurations.

A: These APPS sensors have an interesting history that explains their unavailability:

When the 2003 and 2004 Dodge RAM trucks were manufactured, Chrysler was operating as DaimlerChrysler following a merger with Daimler (the parent company of Mercedes-Benz). During this period, many parts were sourced from other divisions within the company to reduce costs.

The original Dodge RAM APPS sensors (53032456AE and 53032455AD) were actually sourced from Mercedes-Benz, which is why they bear the Mercedes logo. These parts were designed specifically for the Dodge RAM trucks with a unique connector and pin configuration.

After DaimlerChrysler split up (eventually becoming part of Stellantis), the relationship between Mercedes and Dodge ended. With no business connection between these companies, there was no longer a supply chain for these cross-brand parts.

Since these APPS sensors were known to fail relatively frequently, dealer and manufacturer stocks were eventually depleted, and with no production capability, they became permanently discontinued parts.

A: Our complete replacement kit includes:

• New APPS sensor (designed to replace the functionality of 53032456AE and 53032455AD)
• Retro-fit 6-pin wiring harness that adapts the connector pinout
• Self-soldering heat shrink connectors for creating durable connections
• Extra heat shrink tubing for additional protection
• Detailed installation instructions and wiring diagrams

The kit is engineered to be a complete solution with everything you need for installation.

A: These sensors are located under the battery tray in the engine compartment. If your vehicle is a 2003-2004 Dodge RAM with a 5.7L Hemi engine or a 5.9L engine (with manual transmission for diesel models), and your APPS is mounted under the battery tray, then you have one of these sensors.

Our kit is specifically designed for vehicles with the APPS mounted under the battery tray. If your APPS is located elsewhere, such as on the pedal assembly itself, then our kit is not compatible with your vehicle.

A: While it's possible to find used 53032456AE or 53032455AD sensors from junkyards or online marketplaces, there are significant downsides to this approach:

• These sensors were known to fail frequently, so a used part may not last much longer than the one you're replacing
• Used parts have unknown wear and may fail prematurely
• Junkyard parts are typically sold without any warranty
• The availability of these used parts is becoming increasingly limited

Our retrofit kit provides a brand new, engineered solution that's designed to permanently solve the problem rather than temporarily patching it with another used part that might fail soon.

A: Installation is moderately challenging but well within the capabilities of someone comfortable with basic automotive repairs. The process involves:

• Accessing the APPS under the battery tray (may require removing the driver's side wheel and inner plastic fender)
• Disconnecting and removing the old APPS
• Installing the new APPS
• Connecting the wiring harness using the included self-soldering connectors
• Performing an Electronic Throttle Control (ETC) Re-Learn procedure

Installation typically takes 1-2 hours depending on your experience level. With the battery tray already removed, installation takes approximately 1 hour. Starting from scratch may take 1.5 to 2 hours.

We provide detailed instructions with the kit, and customer support is available if you encounter any issues during installation.

A: Basic hand tools are all that's required for installation. A heat gun is helpful for the self-soldering connectors, but a lighter can also work if used carefully. All specialized connectors and wiring are included in the kit.

For the ETC Re-Learn procedure, having an OBD2 diagnostic tool that can perform this function is helpful but not strictly necessary, as there is a manual procedure that can be followed instead.

A: After installation, you'll need to perform an Electronic Throttle Control (ETC) Re-Learn procedure. This calibrates your vehicle's computer to the new APPS sensor. This can be done in two ways:

1. Using an OBD2 programming tool: If you have a diagnostic tool capable of performing an ETC Re-Learn, this is the simplest method. The tool will guide you through the process.
2. Manual procedure: If you don't have an OBD2 programming tool, you can follow the manual procedure outlined in our installation instructions, which involves disconnecting the battery, connecting the terminals, and following specific steps to trigger the relearn process.

It's important to note that the vehicle should be at normal operating temperature for this procedure to work correctly.

A: Yes, we offer a 1-year warranty on the sensor when purchased directly through our website. Warranty replacements require proof of purchase and cover sensor malfunction under normal use conditions.

If you experience any issues with the sensor during the warranty period, please contact us with your order information, and we'll promptly address the situation.

A: Absolutely! Customer support is an important part of our service. If you encounter any issues during installation or have questions about the wiring connections, please reach out through any of these channels:

• Email us directly at dblagbro@gmail.com
• Message through eBay if you purchased there
• Contact through Facebook if you made your purchase there

We'll respond as quickly as possible to help troubleshoot any problems you might be experiencing. We have specific experience with color code variations in these trucks and can help guide you through any discrepancies you might encounter.

A: Yes, many customers have successfully installed this kit without removing the battery tray. The alternative approach involves:

1. Removing the driver's side front tire
2. Removing the inner plastic wheel well guard
3. Accessing the APPS from this angle

This method can save time and make the installation process easier. However, you should still disconnect the battery terminals as a safety precaution before beginning the installation.

A: The replacement sensor has a different connector and pinout configuration than the original 53032456AE/53032455AD sensors. The included wiring harness adapter is essential to:

• Connect the new sensor's plug to your vehicle's existing wiring
• Ensure the correct signals go to the right pins
• Provide a secure, reliable connection

Using the harness included in our kit ensures proper functioning and prevents damage to your vehicle's electrical system.

A: A failing APPS sensor can cause several issues:

• Check Engine Light activation
• Reduced engine power or "limp mode"
• Unpredictable or erratic throttle response
• Stalling or rough idling
• Poor fuel economy
• In severe cases, the vehicle may become undrivable

Since the APPS is a critical component that tells your vehicle's computer how much you're pressing the accelerator pedal, it's important to replace it promptly when it begins to fail.

A: There are a few alternatives, but each has significant drawbacks:

• Used parts: As mentioned earlier, used sensors may fail quickly and offer no warranty
• Pedal assembly conversion: Some have attempted to convert to the 2005+ style pedal assembly, but this requires extensive fabrication, metal modification, and complex wiring changes
• Aftermarket generic sensors: These typically don't match the exact specifications and require extensive modification

Our retrofit kit was specifically engineered to solve this problem with minimal hassle, providing a drop-in solution that maintains the original mounting position and requires only straightforward wiring connections.