电喷柴油发动机通过随车故障指示灯（闪码）排除故障

电喷柴油发动机通过随车故障指示灯（闪码）排除故障

EFI diesel engine through the vehicle fault indicator (flash code) troubleshooting

控制器(ECU)具有故障自诊断功能，但没有自清除历史记录的功能，一旦ECU检测出电喷系统故障,将:

The controller (ECU) with fault self diagnosis function, but since there is no clear record function, once the ECU detect the EFI system fault, will:

1、产生对应的故障码并存入内存。

1, produce a corresponding fault code and stored in memory.

2、依照故障的严重等级，自动进入不同的失效保护策略。

2, according to the severity of the fault, automatically enter the protection failure of different strategies.

3、大部分情况下，失效保护策略仍能保持发动机以降低功率的方式继续工作。

3, in most cases, the failure protection strategy can still continue to work to keep the engine in order to reduce the power of the way.

4、极其严重的故障，失效保护策略会停止喷油，然后发动机停止运转。

Fault 4, extremely serious, failure protection strategy will stop fuel injection, then the engine stops running.

5、出现故障闪码后，可根据闪码与对应的故障描述进行故障的

5, failure flash code, according to the flash code and the corresponding fault description of fault

排除。

Exclude.

6、闪码的出现及读取时，请开启故障请求开关，诊断开关有中断式的和复位式的两种形式：对应整车是K65引脚线，开关出现短路，故障指示灯常亮，在实际过程中利用发动机故障指示灯读取故障码往往是不精确的，会出现偏差，给故障的诊断带来不真实的现象，所以，最好利用专用诊断仪进行诊断。

6, flashing code and read, please open failure to request the switch and diagnostic switch interrupt and reset type two forms: the corresponding vehicle is K65 pin line, switch circuit, fault indicator light, in the actual process of using engine fault indicator read fault codes are often imprecise, deviation, for fault diagnosis and bring not true, so, it is best to use the special diagnostic instrument for diagnosis.

7、故障灯对应整车是K55，如果与ECU相连，故障灯出现常亮。

7, the corresponding vehicle fault light is K55, if ECU is connected, the fault often appears bright lights.

8、ECU故障诊断功能和故障码：

8, function of ECU fault diagnosis and fault codes:

a）故障闪码闪烁方式（以闪码：5-5-3为例）

A) fault flash code flashing mode (with flash code: 5-5-3)

b) 故障代码列表：故障代码表的使用方法:读取故障码后，根据故障代码表中的闪码来查找是什么故障。对于故障级别的定义：

B) list of fault code: fault code table using the method: read the fault code, according to the fault code table in the flash code lookup is what kind of trouble. The definition of fault level:

0：表示错误不存储，系统灯不亮

0: error storage, system does not light

1：表示错误存储，系统灯不亮

1: error storage system, light is not bright

2：表示错误存储，系统灯马上亮

2: error storage system, lamp light immediately.

3：表示错误存储，系统灯两个驾驶循环后亮

3: storage system two error, the lamp light after the driving cycle

故障指示灯

Fault indicator

a)一般说明该灯位于仪表板上,形状为发动机示意图。 电喷系统出现故障后点亮，灯亮时为黄色。

A) general description of the lamp is located on the dashboard, the shape for the engine schematic. Light failure of EFI system, light yellow.

打开点火开关后，系统先进行自检，点亮故障灯。如无故障，则故障灯在自检结束后自动熄灭。

After switching on the ignition system, the first self, light fault lamp. If there is no fault, then the fault lights automatically in self-test after the end.

电喷系统故障消失后，故障指示灯在下一驾驶循环自动熄灭。

EFI system fault disappears after the malfunction indicator lamp automatically extinguished in a driving cycle.

按下故障请求开关，如ECU存有故障代码，该灯将按设定的闪码闪烁。

The fault request switch, such as ECU have the fault code, the lights will be set according to the flash flash code.

b)通过故障指示灯读取故障码/故障闪码的方法

B) through the fault indicator method of fault fault code reading / flash code

点火开关处于ON（电路接通）位置。

The ignition switch in the ON position (circuit).

待机与运行工况下均可进行。

Can stand with the operating conditions of.

按下—松开诊断请求开关即可激活闪码。每一次操作只闪烁一个故障码，依次进行即可读完所有故障码。

Press release - diagnosis request switch to activate flash code. Every operation only flashes a fault code, in order to read all the fault code.

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