Important Information About ABS 5.3 and ABS/TC 5.3

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)" is available 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 optimized with regard to installed volume and weight compared with the ABS 5. 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 form a unit that is located next to the brake master cylinder.

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

Differences between ABS 5.3 and ABS/TC 5.3

ABS 5.3 = 3-channel system

ABS/TC 5.3 = 4-channel system

The essential distinguishing features between ABS and ABS/TC are:

- Number of brake lines at intermediate piece (No. 8/Figure 181 - 96): ABS 5.3 = 3 brake lines ABS/TC 5.3 = 4 brake lines
- TC OFF switch for switching driving stability control on and off is not available on vehicles with Solo ABS (ABS 5.3).
- TC (ASR/ABD) warning light and TC (ASR/ABD) function light (information light) in vehicles with ABS/TC. These lights light up when the ignition is switched on (lamp check). In vehicles with ABS 5.3 (Solo ABS) these lights are not fitted in the instrument cluster.