About Trouble Codes
Diagnostic Trouble Code (DTC) TableNote:
^ When beginning Control Module troubleshooting, always start with "Automatic test sequence" address word -00- by pressing buttons -0- and -0- because Control Modules are interconnected with a CAN-bus wire. This checks Control Module DTC memory.
^ All possible DTCs which can be recognized by ABS Control Module J104- and printed-out on VAG 155 7, are listed according to 5 digit DTC code.
^ If DTCs occur sporadically or DTC memory is not erased after repairs, these DTC are indicated as "sporadic occurring DTC" SP for short time refer to DTC recognition of ABS Control Module.
^ DTC code appears in (operating mode "Rapid Data Transfer") only in print out.
Example:
DTC code Malfunction type code
5 digit 3 digit
00283 035
^ 3 digit malfunction code next to DTC code can be disregarded, but text describing type of malfunction is relevant.
^ Reference is made to individual Electrical test in corrective action column "Repairing DTC" column.
^ Before replacing components indicated with DTC, check all appropriate connectors, wiring and ground connection.
^ After performing repairs, always check and erase DTC memory with Scan tool VAG 1551, also road test above 20 km/h (13 mph).
^ After road test check DTC memory again.