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pialang47

Fortuner TPMS sensor issue

Hi, I've got a 2011 Toyota Fortuner, diesel engine, and recently a warning light came on. The display says tire pressure is too low, plus I get an error message in the speedometer. The car only has 41169 km on it. I checked the tire pressure manually with my pressure gauge, and all tires are inflated correctly. I even cleared the error, but it reappears. Any ideas what this could be?

Summary of the thread

A 2011 Toyota Fortuner owner experienced a persistent 'low tire pressure' warning despite correct tire inflation, suggesting a Tire Pressure Monitoring System (TPMS) issue. The likely cause was identified as a faulty TPMS sensor, possibly due to a depleted battery given the vehicle's age. The recommended solution was to visit a workshop with TPMS diagnostic tools to identify and replace the faulty sensor, which resolved the issue.

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4 comment(s)

mikaghost28

Greetings! Based on your description, my suspicion immediately falls upon a faulty Tire Pressure Monitoring System (TPMS) sensor. The symptoms you describe, particularly the combination of a 'low tire pressure' warning despite correct inflation and the presence of an error code, strongly suggest a problem with one or more of these sensors. Considering your Fortuner's age, it's quite possible that the sensor battery is simply depleted. Before we jump to conclusions, could you tell me if all four tires are displaying the same error, or is it just one specific tire?

pialang47 (community.author)

Thanks for the quick reply! It doesn't specify which tire is the problem. Just the general 'low tire pressure' warning. Is there a way to figure out which sensor is faulty without special equipment?

mikaghost28

Ah, the fact that it doesn't specify a particular tire does complicate matters slightly, but doesn't change the likely diagnosis. Unfortunately, without specialized diagnostic equipment, pinpointing the exact faulty sensor can be challenging. While there are some DIY methods floating around, their reliability is questionable, and they could potentially introduce further complications. Given the age of your vehicle, it's highly probable the sensor batteries are nearing the end of their lifespan, as I mentioned earlier. My professional advice, given your understandable lack of specialized equipment, would be to visit a reputable workshop equipped with TPMS diagnostic tools. They can quickly identify the faulty sensor and replace it. This is likely the most efficient and reliable course of action.

pialang47 (community.author)

Thanks so much for the detailed explanation! I took your advice and went to a local workshop. They confirmed it was indeed a TPMS sensor with a dead battery. Repair cost me 280€, but at least the annoying error is gone. Appreciate the help!

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TOYOTA

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FORTUNER