Anti-lock brake system diagnosis 911 Carrera (996) · System test (ABS and ABS/TCJ 3. The system tes

Anti-lock brake system diagnosis 911 Carrera (996) System test (ABS and ABS/TCJ 3. The system test is not menu-prompted (program-guided). Important notes The system test consists of several test 1. A system test (function test) must be steps and is performed via different menus. performed if work is performed on the Observethe specified sequencewhen hydraulic unit No.7 I the speed sensors and performing the system test. the wiring harness or if the hydraulic unit is exchanged. This is the case after accident The static test must be performed repairs, for example. This prevents electrical at the start of the system test. and hydraulic lines from being swapped and ensures flawless operation of the system. Remedyany detected fault before proceeding with the system test.2. A system test also has to be performed On vehicles with TC, the version coding must if certain brake lines are replaced, e.g. on the be checked or corrected before the static intermediatepiece No.8. Unintentional test is performed. bending of the brake lines could lead to incorrect hydraulic allocation, despite 4. As fewer test steps are required on the different thread sizes used (M12 x 1 vehicleswith Solo ABS (without TC) (several and M 10 x 1). componentsare not installed),the TC-specifictest steps are not displayed in the corresponding menu during the Solo ABS system test. Test steps No.1, Nos. 6...10, Nos. 18...19 and No. 24 are therefore not necessary (not possible)with the Solo ABS. 5. After the system test, take the vehicle on a test drive and make sure that a controlled braking operation (ABScontrol operation) is performed. 181_96 45 -D 46 45 02 DiagnosisfTroubleshooting