Lumbar support · The lumbar support consists of two cushions

911 Carrera (996) Seat memory diagnosis 72 Lumbar support The lumbar support consists of two cushions which are inflated by means of a motor for lumbar support. The cushionsare inflated or deflated to the required pressure one after the other beginningwith the upper cushion. The pressure in the cushions is measured using a pressure sensor (regulating switch). The pressure sensor is located at the same height as the headrest and is integrated into the lumbar adjustment.Automatic adjustment of the lumbar support is carried out by actuating Arrangement of the lumbar adjustment 612_98 the switch for memory seat adjustment.The motor for lumbar adjustment is shown in Electric motor for backrest adjustment Figure 611_98 together with both lumbar cushions. Automatic adjustment of the The backrest is adjusted by an electric motor lumbar support is divided into two phases. with transmission. A Hall-effectsensor is integrated into the electric motor which 1. If the seat motors have not yet reached measuresthe actual position. their required position, adjustment of the lumbar suppqrt is interrupted by releasing the switch for memory seat adjustment. 2. If the seat motors have..reachedtheir required position, adjustment of the lumbar I support is completed after the switch for ,,{ J!~ C I ~ l memory seat adjustment is released. 0 0 1:7 , 0 ( Electric motor for backrest adjustment 61O_96 Arrangement of the lumbar support 611_98 72 98 Diagnosis/troubleshooting, seat memory (System SOl) 72 -D 9 Printed in Germany -25, 1999 99672D1 ~,~=:::::;;"~Ji