Skoda Workshop Service and Repair Manuals

Checking/removing and installing parts of the ABS system on the front axle Special tools and workshop equipment required t  Wiring loom repair kit, e.g. Skoda Car Tool Kit Škoda, Order No.: -S 504 500 V- t  Solid lubricant paste -G 000 650- Removing and installing wheel speed sensor → Chapter Check pulse rotor or remove and install → Chapter Check axial run-out of pulse rotor → Chapter Removing and installing the wheel speed sensor cables   Note t  It is prohibited to repair shielded leads of the ABS system. t  Before disconnecting the battery determine the code of radio sets fitted with anti-theft coding. t  After connecting the battery, perform the following: –  on vehicles with radio encoding, carry out the coding, –  re-set clock, –  initialise power windows on vehicles fitted with power windows → BookletOctavia Removing –  Disconnect battery.   Note The following 2 work steps do not apply to the 1.6 ltr./55 kW engine:

–  Disconnect the plug of the air mass meter -1- from the air guide pipe of the air filter. –  Unscrew screws -2- at the air filter -3- and lay it aside. –  Remove the relay carrier above the brake servo unit on diesel engines.

–  Release the multi-pin connector -1- (-arrow a-) and disconnect it from the ABS control unit -arrow b-.

–  Unlock the cap -1- of the multi-pin connector -2- using a screwdriver and remove it.

–  Release secondary lock (purple) with a small screwdriver in the -direction of the arrow-.

Contact assignment of the plug connection -T47a- wiring loom/ABS control unit -J104-

Contact		Wiring to component ...
3 + 4		Front right wheel speed sensor -G45-
33 + 34		Front left wheel speed sensor -G47-
6 + 7		Rear right wheel speed sensor -G44-
36 + 37		Rear left wheel speed sensor -G46-

–  Press out the relevant contacts using a suitable ejection tool from the wiring loom repair kit. –  Release plug connection on wheel speed sensor and separate plug connector. –  Remove defective wheel speed sensor cable. Install –  Draw in new wheel speed sensor cable. –  Connect wheel speed sensor cable to wheel speed sensor.

–  Clip in wheel speed sensor cable -arrows-.   Note When assembling the wheel speed sensor cable make sure it is not twisted when installed in the wheelhouse.

–  Insert contact in the plug housing and insert the single cable seal with a suitable plug-in tool from the wiring loom repair kit up to the stop.

–  Secure the contacts with the secondary lock (purple). –  Lock the secondary lock (purple) with a small screwdriver in the -direction of the arrow-. –  Position the cap on the multi-pin connector. –  Insert the multi-pin connector on the ABS control unit -J104- and lock. –  Connect battery → Electrical System; Rep. gr.27. –  Interrogate the fault memory → Chapter. –  Erasing fault memory → Chapter.