ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, Electrical Check

ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check





Special tools and equipment
^ V.A.G 1598/21 Adapter
^ V.A.G 1594 A Adapter set
^ V.A.G 1526 A Multimeter
^ V.A.G 1921 Pliers

The test steps from the OBD test table are valid for:
^ For vehicles on which the On Board Diagnostic (OBD) does not give any indication of the source of the malfunction, work through the complete electrical check.
^ For vehicles on which the OBD provides a direct indication of the source of the malfunction, only carry out the test steps recommended in the Diagnostic Trouble Code (DTC) table (directed entry). Test Table

An overview of all the test steps in the electrical check can be found at Multi-Pin Connector With Contact Assignment. ABS ITT Mark 20 IE

Test requirements
^ Switch ignition and electrical consumers off before beginning the check (headlights, lighting, fan ...).
^ Fuses S9, S13, S178 and S179 must be OK (remove fuses from fuse holder to check).

Removing air cleaner





- Pull connector -2- off mass air flow sensor.
- Release spring-type clip -1- on air duct hose with pliers V.A.G 1921 and pull hose off air cleaner.
- Remove air cleaner bolts -3- and take out air cleaner -4-.





- Release ABS control module (w/EDL) -J104- connector -arrow 1- and pull off -arrow 2-.





- Connect test box V.A.G 1598/21 -1- to multi-pin connector of ABS control module (w/EDL) -J104- (-2-).
The specified values are matched to the V.A.G 1526 and are not necessarily applicable for other test units.