Symptom: a 2006 Bora to GP cars, equipped with BJH 1.6L engine, mileage of more than 1000 km. Users reflect the rainy day, the four-door glass lifter does not work, the remote control does not work.
    Check the analysis: first confirm the car's failure, found that the following fault phenomenon.
    (1) The glass lifter does not work. The remote control does not work and can not unlock and lock the door.
    (2) the door of the instrument is not off the light does not work, but the gated lights work properly.
    (3) The fault is within the comfort system, but the VAS5051 can not enter the comfort system (address code 46) using the fault diagnosis machine.
    From the fault diagnosis device can not enter the comfort system to determine, the initial suspected comfort system control unit damage, or comfort system control unit power and grounding line failure. It can be seen from the circuit diagram (Figure 1) fuse S14 for the comfort system control unit J393 to provide electricity on the 30th, check the fuse S14 is not blown, fuse S111 and S144 (located in the additional relay bracket) is also comfortable system control unit J393 Provide power, check and found no fuse. Unplug the two connectors T23 and T15 of the Comfort System Control Unit. Measure T23 / 22 feet, T15 / 12 and T15 / 13 are battery voltage (T23 / 22 is supplied by fuse S14, T15 / 12 is supplied by fuse S111 , T15 / 13 by the fuse S144 power supply), T23 / 23 feet for the ground, the ground resistance of 0.9Ω. In this need to remind the maintenance staff attention, if unplug the fuse S14, the comfort system can not enter the instrument on the door is not off the light is always bright, remote control function failure, the door glass lifter can not move, left and right front door lights not bright.