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What does it mean when the EPC light is on and the JAC truck cannot move?

1 Answers

McAlexa

07/29/25 9:37pm

When the EPC indicator light on a JAC truck remains constantly illuminated, it indicates a malfunction in the engine or electronic systems, and the vehicle should not be driven further. Immediate contact with a repair shop is necessary. Of course, if the engine stalls due to improper operation, the indicator light may also illuminate. If the light turns off after restarting the engine, it means everything is functioning normally. When the EPC light is on in a JAC truck, it signifies a vehicle malfunction, and the driver should stop to inspect the issue. Possible causes of the fault include: 1. The EPC light may illuminate due to a dirty throttle body. 2. Additionally, a faulty brake light switch can also lead to this phenomenon. 3. Another potential cause is a leak in the intake system, which, when detected by the engine control unit, will trigger the EPC warning light. 4. Leaks in the crankcase ventilation system can also result in this fault. It is recommended to visit an authorized 4S dealership for a comprehensive computer diagnostic test.

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