Electrical Test Instructions

Teves 04 ABS And ABS/EDL Electrical Test

Electrical test steps are valid when:
- On Board Diagnostic (OBD) test program gives no indication of the source of the malfunction; Work through complete electrical test.
- On Board Diagnostic (OBD) provides direct indication of the source of the malfunction; Only carry out the test steps recommended in the Diagnostic Trouble Code (DTC) table (pin-pointed entry).

NOTE: Test steps that are necessary only for vehicles with ABS/EDL have an addendum "EDL" in the 'Test step" column.

Test Requirements
- Fuses -S4-, -S20-, -S53-, -S54- OK.
- ABS control module -J1O4- Ground (GND) wires OK:





- Up to O1.93: Under the right sill panel trim.




- From O1.93: Under rear seat near ABS control module.
- Electrical consumers switched-off before beginning test (headlights, lighting, fan, etc.).





- Disconnect multi-pin harness connector from ABS control module-J104- and connect VAG 1598 test box with VAG 1598/10 adapter -1- to harness connector -2-.

NOTE: The control module -3- is not connected!

CAUTION: The specifications listed in the electrical test table are matched to the specified multimeter (Fluke 83 or equivalent) and are not necessarily valid for other test equipment.

Test equipment and aids required:
- Test box VAG 1598 with adapter VAG 1598/10
- VW 1594 connector test kit
- Multimeter (Fluke 83 or equivalent)

Information On Electrical Test Tables
- The socket number designations on the VAG 1598 test box are identical to the terminal designations on the ABS Control module -J 104- ref. Electrical Wiring Diagrams.
- If the measured values deviate from the specifications, repair the malfunction as described in the right-hand column of the table.
- If the measured values deviate only slightly from the specifications, clean sockets and connectors for tester and adapter cables ~with contact spray G 000 700 04) and repeat the test.
- Before replacing components, check wiring and connections and also, particularly for specifications of less than 10 ohms, repeat the resistance test on the component.