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故障现象一辆2011款北京现代悦动轿车(采用G4FC发动机),累计行驶里程约1.3万km,客户反映天气热的时候,有好几次吃过午饭后出现发动机无法起动着机的故障,曾因此在当地的修理厂维修,当地的修理厂检查发现发动机点火系不工作,但经过维修没有彻底排除故障,于是将该车开到笔者公司进行维修。故障诊断接车后,首先用北京现代专用故障检测仪(HI-DS)进行诊断,显示系统正常,无故障;起动发动机试车,发动机可以正常起动着机。由于此故障为间歇性的,于是与客户商量将该车停在公司,待故障再现时再进行检修。将该车停放在广场上晒了几个小时太阳后试验,发现发动机出现了上述无法起动着机的故障了。此时立即使用HI-DS进行诊断,调得的故障代码为P1690——SMARTRA
Symptoms A 2011 Beijing Hyundai Wyatt sedan (with G4FC engine), the cumulative mileage of about 13,000 km, the customer reflects the hot weather, there have been several times after eating the engine failed to start the machine failure, so in Local repair shop repairs, the local garage inspection found that the engine ignition system does not work, but after maintenance did not completely eliminate the fault, so the car opened to the author for maintenance. Fault diagnosis After the car, first with the Beijing Hyundai Dedicated Fault Detector (HI-DS) for diagnosis, the system shows normal, trouble-free; start the engine test run, the engine can start the machine normally. Because of this intermittent fault, so customers discuss with the car parked in the company until the recurrence of the fault repair. The car parked in the square sun a few hours after the sun test and found the engine appeared above the failure to start the machine. At this point immediately use HI-DS for diagnosis, tune the fault code is P1690 - SMARTRA