Anti-Lock Brake System - Except 5.3 Abs Or Abs/TCS: Identification

There are three Subaru ABS systems, standard ABS (35-pin ABS control unit), 5.3 ABS (83-pin ABS control unit) and ABS/TCS (3 connector 30-pin ABS control unit). This article contains anti-lock brake testing for Standard ABS on vehicles without 5.3 ABS or TCS. For testing on vehicles with 5.3 ABS, see ANTI-LOCK BRAKE SYSTEM - WITH 5.3 ABS article. For testing on vehicles with TCS, see ANTI-LOCK BRAKE SYSTEM - WITH TCS article.