There is no high voltage in the hot car, the fault code is P1626, and it is normal again for more th

Fault code P1626 (immobilizer engine control module to multifunction control module communication failure).

If there is a fault of this type, check a certain reason, such as whether the transmission signal of the internal chip is operating normally, and then you need to use a special detection computer to unlock the anti-theft system.

Perform fault self-diagnosis. If there is a fault code, the fault cause is searched according to the displayed fault code. If possible, the dynamic data stream can be further read, mainly to observe the load signal of the engine, the opening of the idle control valve or the number of control steps, the pressure signal of the engine intake system, the coolant temperature signal, and the signal of each switch.

Check the coolant temperature sensor. If the engine idle speed returns to normal after unplugging the coolant temperature sensor harness, the coolant temperature sensor is faulty and the coolant signal is too low to be input to the computer. It is worth noting:

When the coolant temperature sensor is unplugged, the engine failure warning light illuminates and the computer's fail-safe function kicks in, automatically setting the coolant temperature to 80 degrees. After plugging the coolant temperature sensor harness back in, the computer may still leave a fault code for the coolant temperature sensor. In this regard, you can connect the computer detector to clear the fault code, or remove the engine computer fuse after the engine is turned off, which lasts for about 30 seconds to eliminate the fault code in the computer.

Use pliers to force the crankcase wrapped in a soft cloth to ventilate.

I've had this fault code twice, and I'll have time to take a look at my previous one.

Engine Control Module Anti-theft Module - Fuel start signal is lost. In a word, the anti-theft system is activated. There may be a problem with the key.

Fault code: P1626

Chinese meaning: Engine Control Module (ECM) Anti-theft Control Module - Fuel activation signal loss.

English meaning: Engine Control Module (ECM) Immobilizer Control Module - Fuel Enable Signal Lost

Category: Powertrain systems (manufacturer's own meaning).

P1626: Engine Control Module Anti-theft Module - Fuel Start Signal Lost. It is the anti-theft system that is activated [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello! This requires a computer to check and see what exactly is wrong with the data analysis.

Keys, anti-theft modules, engine computers, wiring.

An experienced master is needed to troubleshoot [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, anti-theft, match the handle [car problems, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, it seems that I have encountered it before, I remember but I changed an anti-theft module, it took too long to remember clearly, it should be a problem with the module.

I hope my answer will be helpful to you [If you have a question about the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello What decoder is used to read it, is there no explanation? [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Anti-theft issues. Whether the car won't start and won't inject fuel.

Open the lid of the battery, there is a fuse on the piece, and look at the amount of it.

Hello, if there is this fault code, you must go to the 4S shop, use the computer to read it first, and then repair.