ABS/ESP ITT Mark 20: Overview

ABS/EDL/ASR/ESP ITT Mark 20 IE, electrical testing

Special Tools and Equipment






- VAG 1598/33 adapter
- VAG1594A connector test kit
- VAG1526A multimeter
- VAG1921 hose clip pliers
- VAG1598A test box


If the On Board Diagnostic (OBD) sequence does not provide any indication of the source of the malfunction, work through all of the electrical test steps. If the OBD sequence identifies the source of the malfunction, only carry out the test steps recommended in the DTC table (specific testing).