The Tire Pressure Monitoring System (TPMS) in your Honda is a crucial safety feature, alerting you to low tire pressure. A malfunctioning system, indicated by a persistent or intermittent TPMS light, can be frustrating. This article explores common TPMS issues in Honda vehicles, focusing on troubleshooting and solutions, particularly when dealing with an elusive TPMS code.
Common TPMS Issues in Honda Vehicles
One common scenario is an intermittent TPMS light, as described with a 2006 Honda Pilot EXL-Res. The owner experienced a TPMS light that couldn’t be easily diagnosed. Testing revealed functional sensors with good battery life, pointing towards a potential issue with the TPMS control unit itself. Unfortunately, replacing this unit (part number 39350-59V-A11) can be challenging due to frequent backorders. This highlights the importance of thorough diagnostics before ordering parts. While a code reader can sometimes provide a specific TPMS code, intermittent issues may not always trigger a stored code.
Another complexity arises when considering the interaction between the TPMS and the Vehicle Stability Assist (VSA) system. In situations like sand driving, where lower tire pressure is desirable, the VSA can hinder performance by cutting power due to detected wheel spin. Disabling the VSA is often necessary, but a lit TPMS light can prevent this through the panel switch. This necessitates pulling the TPMS fuse in the secondary underhood fuse box for manual VSA deactivation. The relationship between the TPMS light and VSA disabling functionality varies between Honda models and years, requiring consultation with your specific vehicle’s owner’s manual.
Troubleshooting TPMS Problems
Start by checking tire pressures with a reliable gauge. Ensure all tires are inflated to the recommended pressure listed on the tire placard (usually located on the driver’s side doorjamb or in the owner’s manual). If pressures are correct, the next step is using a TPMS tool to read sensor data. This will confirm if the sensors are transmitting correctly and if their batteries are healthy.
If sensors are good, consider the possibility of a faulty TPMS control module. While replacing this module might resolve the problem, its availability and cost should be factored in. Consulting a qualified Honda technician is recommended for accurate diagnosis and repair, especially if the problem persists after basic troubleshooting. They have access to Honda-specific diagnostic tools that can pinpoint the root cause more effectively.
Conclusion
Dealing with TPMS issues in a Honda can range from a simple tire pressure adjustment to a more complex control module replacement. Understanding the system and undertaking methodical troubleshooting can help you address the problem efficiently. When in doubt, seeking professional help from a Honda specialist will ensure a proper diagnosis and repair, keeping your TPMS functioning correctly and contributing to a safer driving experience.
