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Abnormal leak of acc press discussion in ' gen 3 prius care, maintenance & troubleshooting ' started by ninthtale, sep 16, 2021. Internal leakage is suspected if the pump motor runs continuously without stopping. When the code c1391 abnormal leak of acc press appears, it means the accumulator cannot hold pressure properly

Instead of maintaining steady pressure, it leaks internally, causing frequent pump activation, warning lights, and longer stopping distances. If a brake fluid, internal, or other leak is detected due to improper actuator sealing, this information is saved in the diagnostic trouble code The c1391 code indicates the presence of abnormal air in the accumulator pressure control system

If a brake fluid, internal, or other leak is detected due to improper actuator sealing, this information is saved in the diagnostic trouble code.

Repair information for c1391 toyota code Learn what abnormal leak of accumulator pressure means, location and how to repair. The c1391 error code is a common issue in toyota prius models across different generations, as well as other toyota and lexus hybrids This code indicates an abnormal leak in the brake actuator, which can lead to braking performance issues and safety concerns.

C1391 abnormal leak accumulator fix easy #toyota #lexus #manoybeeper manoy beeper garage 5.78k subscribers subscribe The c1391 code indicates an abnormal leak in the brake accumulator, often due to worn seals or hoses Since the vehicle's brakes feel normal, inspect the accumulator's rubber diaphragm and brake lines for cracks or leaks Original hoses can degrade over time, especially after years of use.

Just got the c1391 code for abnormal leak in accumulator on my 2013 prius

I bought one of the mini vci cables and grabbed the code through techstream after getting brake, abs and traction control lights on the dash Is this a common issue on the 2013 Through my research it seems only common on the earlier models Going to check the brakes and fluid later but will probably have to take it to.

Is the c1391 abnormal leak of acc press code usually related to replacement of the accumulator or the actuator The code means what it says, but the leak in question could be in either unit The accumulator is mechanically simpler, just a couple of valves (a check and a relief valve) and a pump, and the big accumulator chamber. C1391 code indicates the presence of abnormal air in the accumulator pressure control system

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