What causes the EPC light to come on in a truck?

[DylanFitz]

The reasons for the EPC light coming on in a truck are as follows: 1. Severe carbon buildup in the throttle body. Severe carbon buildup in the throttle body is the main cause of the EPC light coming on. When the throttle body has severe carbon buildup, the vehicle may also experience issues such as sluggish acceleration, increased fuel consumption, and difficulty starting. 2. Engine overheating. If the truck's engine operates under excessive load for too long, it can trigger multiple warning lights. In this case, the vehicle should be pulled over and turned off to allow it to cool down naturally. If warning lights remain on after the engine cools down, it's necessary to take the vehicle to a repair shop or 4S store for servicing. 3. Fault in the vehicle's intake system. If there's a fault in the truck's intake system, especially if there's a leak in the crankcase ventilation system, it can also cause the EPC light to come on. 4. ECU malfunction. The causes of ECU malfunctions are relatively complex and require professional inspection at a repair shop or 4S store.