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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brake System (Abs) - 5.3 & Abs/TC 5.3, Diagnosis - 911 CARRERA (996) >> ABS 5.3 and ABS/TC 5.3 systems >> Important information about ABS 5.3 and ABS/TC 5.3 >> General

Important information about ABS 5.3 and ABS/TC 5.3: General

The 911 Carrera (996) is fitted as standard  with an anti-lock brake system (ABS 5.3). "Traction Control (TC)"  can be obtained on special request  on the basis of ABS 5.3.Traction Control (TC)  is a combination of anti-slip control (ASR) and Automatic Brake Differential (ABD).

TC is a further system for increasing driving safety. 

ABS 5.3  is optimised with regard to installed volume and weight compared with  the ABS 5  (ABS 5 on the 993). Control module (No. 1), hydraulic unit (No. 7), pump motor relay and valve relay (No. 2) of ABS 5.3 and ABS/TC 5.3 are a unit  that is positioned next to the master brake cylinder.

Fig 1: Identifying Control Module, Hydraulic Unit, Pump Motor Relay And Valve Relay
G03098950Courtesy of PORSCHE OF NORTH AMERICA, INC.

Diagnosis and system checks  on both systems are carried out with the Porsche System Tester 2. 

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