Exclude the public ABS system pump Trouble Codes

         Many colleagues in the maintenance of VW's ABS system may encounter such a failure: ABS warning light suddenly lit, turn the ignition switch to restart later returned to normal, not necessarily when it will light up themselves, and lights the number will gradually frequent.
         Encounter this failure, natural to use 1552 diagnostic instruments to detect the fault codes stored, if it detects a fault code history for 01276, and models involved are Shanghai auto diagnosis Volkswagen Passat B5, the era of Superman or Volkswagen Jetta or red car. That would be the first observation confirmed the identity of ATE ABS computer above. For the interpretation of this fault code is ABS pump circuit failure, in addition to maintenance, when a circuit should first general inspection, the most important thing is that the internal models of the ABS computer will be open welding fault circuit board. Many people in the detection of peripheral circuits normally require customers to go after replacement ABS computer assembly (with motor master cylinder), this approach too expensive, because the computer board can be repaired.
         The models of the computer board is sealed plastic case. Repair methods are as follows: Remove the PC board from the above ABS master cylinder, with a sharp blade or a hacksaw carefully cut open along the plastic slit marks, then "a" word screwdriver to carefully pry open the cover. So you can see all the computers in the computer external terminal board of the joints, with a magnifying glass carefully observe the ABS pump motor access to the two largest plug terminal elm327 bluetooth solder joint, you'll see it and touch around the open welding solder gap. The remaining task is to use a small electric iron re-weld them firmly, there is another few to each wheel speed sensor also fixed at the welding point, because there are a few cases the sensor terminal open welding faults. After the service is completed to pay attention to good sealant to seal the computer cover, and then install the master cylinder to go above. Eliminate the fault codes, brakes deflated.
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