2014-2017 Jeep Grand Cherokee Fuse Box (TIPM): Stalling, No-Start & Replacement Guide

Symptoms of a Failing Fuse Box (TIPM)

A failing TIPM can make your Grand Cherokee seem like it's possessed. Because it controls so many different electrical systems, symptoms can be widespread and intermittent. One of the most common and dangerous symptoms is the engine stalling while driving or failing to start, often due to an internal failure of the fuel pump relay. 🎬 See: How to diagnose a bad fuel pump relay You may also experience electrical accessories acting erratically, such as the horn blaring, wipers activating, or door locks cycling on their own.

• Engine will crank but not start
🎬 Watch: Troubleshooting a Jeep Grand Cherokee no-start issue
• Engine stalls unexpectedly while driving
• Fuel pump continues to run after the engine is off, draining the battery
• Horn, wipers, or lights turn on and off randomly
• Power windows or door locks do not work
• A/C compressor does not engage
• Dashboard warning lights illuminate randomly
• Communication error codes (U-codes) are stored, such as U0100, U0140, or U0155

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

While the most notorious TIPM issues affected earlier model year Jeeps, the 2014-2017 generation is not without its own electrical concerns. The 2014 model year, in particular, has a high number of Technical Service Bulletins (TSBs).

• NHTSA Recall 13V-483 / Chrysler N58: Issued for some 2014 Grand Cherokees built between January and August 2013. This recall addresses issues caused by a combination of loose alternator ground wires and software problems, which could lead to random warning lights and the loss of ABS and Electronic Stability Control (ESC) functionality. The fix involves a software update and tightening the ground wire.
• NHTSA Recall 18V-332: This wide-ranging recall affected many FCA vehicles, including the 2014-2018 Grand Cherokee. A software flaw could prevent the cruise control from disengaging, creating a significant safety risk. The remedy is a software flash for the powertrain control module performed by a dealer.
• Sun Visor Wiring Recall: A recall was issued for 2011-2014 models where the vanity lamp wiring in the sun visor could short circuit after a service repair, increasing the risk of a fire.

It's important to note that while many TIPM-related lawsuits and recalls focused on pre-2014 models, the underlying design principles and many of the symptoms persist in this generation.

Buying a Used Fuse Box: What to Look For

When purchasing a used TIPM for your Grand Cherokee, careful verification is essential to ensure you get the right part and avoid creating new problems. A used OEM unit is often a better choice than a new aftermarket one due to potential quality and firmware compatibility issues.

1. Verify Compatibility by Part Number AND Engine

This is the most critical step. There are numerous part numbers for this generation, and they are NOT all interchangeable. You must match the OEM part number from your original unit. Furthermore, there are different TIPMs for gasoline engines (3.6L, 5.7L, 6.4L) and the 3.0L V6 Diesel engine. Installing the wrong one will cause system malfunctions.

• Gasoline Engines: Look for part numbers like 68137439AG, 68242800AE, etc.
• Diesel Engines: Look for part numbers like 68194607AG.

Always check the part description for the specific engine it fits. The part number on your original unit is the definitive source of truth.

2. Physical Inspection Checklist

Before buying, physically inspect the used TIPM if possible, or scrutinize photos carefully.

• Check for Corrosion: Look for any green or white crusty deposits on the external pins and inside the connector ports. Water intrusion is a common cause of failure, and any sign of corrosion is a major red flag.
• Inspect the Housing: Check for cracks, heat damage, or melted plastic, especially around the fuse and relay sockets.
• Examine the Connectors: Ensure none of the pins are bent, broken, or pushed back into the connector.
• Ask About the Donor Vehicle: If possible, find out why the donor vehicle was taken off the road. A part from a collision-damaged vehicle is generally preferable to one from a vehicle that had unresolved electrical issues or was damaged by flood or fire.

3. Programming and Installation

While some sources suggest these modules are plug-and-play, others indicate programming may be required. After installation, a 'hard reset' procedure is often necessary. This typically involves disconnecting the battery, connecting the positive and negative cables together for a few minutes (away from the battery) to drain residual power, and then performing a specific key-on/key-off sequence to allow the vehicle's modules to re-learn and communicate with the new TIPM. 🎬 Watch: Step-by-step TIPM removal, installation, and soft reset tutorial If issues persist after a successful part number match and hard reset, a dealer or a well-equipped independent shop with a compatible scan tool (like a wiTECH) may need to perform a configuration procedure.

Cost Comparison

Replacing a TIPM can be expensive, but buying a used OEM part can offer significant savings over a new unit from the dealer.

Frequently Asked Questions (FAQ)