HELP! Need some technical advice > <

[beear]

Hi guys, I'm new to this forum, just took my 2001 turbo to check PSM / ABS off issue, and got the error code 4205 (front left speed sensor wire) from PIWIS tester. We swap both front sensor between left and right and still got same error code at left side, thus, I think the sensor should be fine, next thing we do is remove some internal plastic cover and check each connecting joints and did not find any ware off joint or wire. :wacko:

Does anyone experienced same issue or know the correct diagnosis procedure for this problem? Any input will be appreciated ^^

[Loren]

:welcome:

Fault code 4205 Speed sensor lead, front left

Possible cause of fault

- Short circuit to B+ / ground or open circuit between control unit and speed sensor

- Speed sensor faulty

- Control unit faulty

Sensor should be between 1k ohms and 3k ohms. If not the sensor is bad.

Also, clean the toothed ring at the front left for soiling and damage.

[RFM]

The wiring will crack inside the insulation approx. 1 cm under the rubber grommet which is connected on the wheel arch. ( part between the strut and and the wheel arch ) You have to cut the insulator, inclusive the grommet, open to see the break.