How to Deal with Great Wall Fengjun 5 4WD Malfunction?
1 Answers
Great Wall Fengjun 5 4WD malfunction can be addressed by replacing the transmission control unit, sensors, or transfer case clutch friction plates. Transmission Control Unit Malfunction: When the transmission control unit fails, it cannot analyze data from the transfer system sensors. To ensure normal vehicle operation, the transmission control unit activates a protection mode, forcing the vehicle into 2WD. In this case, you can reset and rematch the transmission control unit data, then test drive the vehicle or attempt to upgrade the transmission control unit version. If the issue persists after testing, it is recommended to replace the transmission control unit. Transmission Sensor Malfunction: If a sensor fails, the transmission control unit will protect the transfer case by forcing the vehicle into 2WD mode. At this point, you can use a specialized automotive diagnostic tool to read the fault codes, identify the faulty sensor, and replace it. If under warranty, you can visit a 4S store for free repair or replacement. Multi-Plate Clutch Limited-Slip Differential Malfunction: The multi-plate clutch limited-slip differential relies on clutch friction plates to transmit power to the rear wheels. If a malfunction occurs, you can use a lift to raise the vehicle, remove the transfer case, and inspect the clutch friction plates. If the clutch friction plates are severely worn, burnt, or deformed, they need to be replaced.