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故障现象一辆2016款路虎发现神行车,使用智能钥匙无法解锁及闭锁,且尝试接通点火开关时,组合仪表提示“智能钥匙未找到”(图1)。故障诊断将智能钥匙放在转向盘护罩处尝试应急起动,发动机可以正常起动。应急起动时,智能钥匙绕过遥控功能执行器(RFA,又称为免钥匙车辆模块),通过防盗止动系统天线单元(IAU)直接与中央接线盒(CJB,内置车身控制模块)通信,由此推断故障是由RFA工作不良引起的。
Symptom A 2016 Land Rover found God driving, using the smart key can not be unlocked and locked, and try to turn the ignition switch, the combination of instrument tips “smart key not found ” (Figure 1). Troubleshooting Put the smart key on the steering wheel cover and try emergency start, the engine can start normally. In emergency start-up, the smart key bypasses the remote control actuator (RFA, also known as the keyless vehicle module) and communicates directly with the central junction box (CJB, built-in body control module) via the immobilizer system antenna unit (IAU) This inferred fault was caused by poor RFA work.