What is the fault code of Dongfeng Peugeot 206, p2 176?

Dongfeng Peugeot 206, p2 176 indicates that the throttle actuator control system is out of order.

(1) The basic principles of automobile common fault diagnosis can be summarized in 24 words: be familiar with the structure, closely follow the principle, observe the phenomenon, from the outside to the inside, it is easy first, then difficult, and it is beneficial to disassemble less. This requires that on the basis of analyzing the structure and principle, we should first collect and understand all the phenomena of faults, and then investigate from several aspects in use, such as the gradual and sudden appearance of faults, the appearance before maintenance and the appearance after overhaul, and find out under what circumstances and conditions the fault phenomena are most obvious. If conditions permit, we can also change the working state of the car to observe the various changes of the phenomenon, so as to grasp the characteristics of the fault phenomenon.

(2) You must be familiar with the structure, working principle and working conditions of the car, and find out the main causes of the failure. Because the reasons for failure are not single, it is necessary to analyze and determine the main reasons, first eliminate the easy ones, then eliminate the difficult ones one by one, and then find out, so as to avoid detours. If the engine exhaust pipe emits black smoke, it is mainly because the fuel is not completely burned, so we should grasp the key of oil, gas and their mixing, and don't be confused by some secondary reasons and superficial phenomena. In particular, it should be noted that it is not easy to disassemble, and it is easy to cause new faults and waste unnecessary manpower, material resources and time.