ABS Check With Porsche System Tester 2

Important instructions for ABS and ABS/TC





1. If work has been done on the hydraulic unit No. 7, the speed sensors and the cable harness or if the hydraulic unit is replaced, a system check (functional check) must be performed with the Porsche System Tester 2. This is the case, for example, after accident repairs. This prevents any confusion of electrical or hydraulic lines and ensures faultless operation of the system.

If certain brake lines are replaced, e.g. at the intermediate piece in the front left wheel housing (No. 8), a system check also must be performed. The hydraulic allocation could be incorrect in spite of the different threads (M12 x 1 and M10 x 1), due to unintentional bending of the brake lines.

2. If there is a fault indication during operation (when no assembly work was carried out beforehand), diagnosis and troubleshooting are also carried out with the Porsche System Tester 2. To do this, select the ABS or ABS/TC system and read out the fault memory there. The fault can then be localized using the appropriate menus (Drive links/Actual values).