Data Link Connector Circuit Description for Isuzu Isuzu MD Steel Tilt (F Model) 1998

In hydraulic brake models, the scan tool accesses the electronic brake control module (EBCM) through CKT 396 (BRN/WHT) or CKT 799 (TAN/WHT).

In air brake models, the scan tool accesses the EBCM through the following circuits:

These communication lines monitor the modules for diagnostic purposes and inspect for diagnostic trouble codes (DTCs). Circuit breaker 5 applies voltage at all times to the data link connector (DLC). Joint connector 1 permanently grounds the DLC.