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How to reset the exhaust fault light on FAW Jiefang Tiger VN?

2 Answers

DianaRose

08/29/25 2:52am

You can periodically increase the throttle to burn off particulate matter using high temperatures. Vehicle fault lights are categorized into the following 3 types: 1. Battery indicator light: Displays the working status of the car battery, usually in red or yellow. The light turns on when the key is turned and the vehicle performs a self-check, and it automatically turns off after the car is started. 2. Oil pressure light: The oil pressure warning light typically illuminates due to low oil pressure or a damaged oil pump. The pressure sensor continuously monitors the oil pressure status. Low oil pressure can lead to lubrication issues or even dry friction, causing engine damage. 3. Coolant temperature warning light: Indicates that the engine coolant temperature is too high or there is insufficient coolant. You should immediately pull over, turn off the engine, and check whether the coolant level is low or if the temperature is too high. Wait until the engine cools down to normal operating temperature before adding coolant or continuing to drive.

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LeSienna

09/10/25 7:36am

I just finished dealing with the exhaust fault light issue on the FAW Jiefanghu VN, so I'd like to share some experience. The most common problem is related to the urea system. First, check if the urea fluid level is sufficient. If it's below the minimum line, promptly add qualified urea. Then inspect whether the urea nozzle has crystallized blockages. Simply remove it and soak it in hot water for cleaning. Additionally, faults in the exhaust temperature sensor or NOx sensor can also trigger the warning light. Using a diagnostic tool to read the fault codes is the most accurate method. After cleaning, drive for several dozen kilometers to allow the system to perform a self-check. If the light turns off, then everything is fine. If it remains lit, it might indicate that the ECU program needs an update. It's recommended to visit a service station for specialized equipment handling. Don't rush to disassemble parts; conducting basic troubleshooting first can save a lot of money.

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