Test Requirements
ABS/EDL/ASR/ESP Bosch 5.3, electrical testing
Special Tools and Equipment
^ VAG1598/20 test box
^ VAG1 594A connector test kit
^ VAG1526A multimeter
The test steps starting are valid for vehicles with ABS/EDL/ASR/ESP
^ Vehicles for which On Board Diagnostic (OBD) does not result in suggestions regarding the malfunction cause. In this case, the electrical test should be performed in its entirety.
^ Vehicles for which On Board Diagnostic (OBD) results in direct suggestions regarding the malfunction cause. In this case, only perform test steps recommended in the DTC table (selective troubleshooting).
Test requirements
^ Before beginning the test, switch off ignition and electrical consumers (headlights, lighting, fans ...).
^ All fuses must be OK (remove fuses from fuse holder for test).
^ Disconnect multi-pin connector from ABS control module (w/EDL) -J104- and connect VAG1598/20 test box to connector of wiring harness.
Specified values refer to readings on the VAG1526 and are not necessarily applicable for other test units.