What is the reason for no signal in the Trumpchi GA5 key receiver?
2 Answers
Reasons for no signal in the Trumpchi GA5 key receiver: 1. Car remote key battery is dead: The remote key emits weak radio waves, which are received by the car antenna. The electronic control unit (ECU) identifies the signal code, and the system's actuator performs the lock/unlock action. As the battery power decreases, the strength of the radio waves is also affected, resulting in the vehicle being unable to receive the signal. Solution: Replace the battery. 2. Faulty car key sensor module: Modern car keys use chips, which are part of a magnetic chip system. If damaged, the key cannot emit signals. Solution: Replace the key.
When I found that the GAC GA5 key receiver had no signal, my first reaction was to check if the key battery was dead. Having driven a GA5 for several years, I encountered this situation before, and replacing the battery solved it—simple as that. However, sometimes even after changing the battery, the issue persists, which could indicate a problem with the car, such as water damage to the receiver module or poor wiring contact, especially if the car is parked outdoors during the rainy season. Signal interference could also be the culprit; nearby cell towers or strong magnetic field devices may cause malfunctions—try moving to a different location. Also, be mindful if the key itself is damaged or worn out from drops or aging—avoid putting heavy pressure on it. If all tests fail, head to the 4S shop immediately for module diagnostics or system reprogramming—safety should always come first, so don’t take chances.
