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故障现象:一辆奥迪1002.2E轿车,其电子风扇低速不转,高速则运转正常。 故障检查:打开点火开关,起动发动机后接通空调开关,空调系统运转正常,但风扇低速不转,及时将发动机熄火(遇有这种情况应立即停止使用空调)。然后再打开点火开关,拔掉温控开关插头,测量火线(细红底黑道)有电压。取一根导线将火线与高速继电器的开关线(蓝底绿道)连通,电子风扇即高速运转。尔后将该导线取下,并
Symptom: An Audi 1002.2E sedan, the electronic fan does not turn low speed, high speed is working properly. Troubleshooting: Turn on the ignition switch, turn on the air conditioner switch after starting the engine, air-conditioning system is operating normally, but the fan does not turn at low speed, the engine flame out in time (in case of such situation should immediately stop using the air conditioner). Then turn on the ignition switch, unplug the temperature control switch plug, measuring the fire line (thin red basement) voltage. Take a wire to connect the live wire with the high-speed relay switch wire (blue-green road), and the electronic fan runs at a high speed. Then remove the wire, and