Anti-Lock Brake System (ABS) 911 Carrera 4 (996) · 4. Raisevehicle on the left at the jacking points Sensor funct

Anti-Lock Brake System (ABS) 911 Carrera 4 (996) 4. Raisevehicle on the left at the jacking points Sensor function until approx. 100 mm ground clearance is To check the vehicle, raise it once on the left present at the left wheels. and once on the right, approx. 100 mm each Read off and note or store the value of the time. sensor in the PST 2 display. An exactly defined change from the transverse Note accelerationvalue must take place. Observethe safety regulationswhen raising the The output value is used as a reference value vehicle. for vehicles placed on a level surface. 5. Lower vehicle on the left again. Nominal display Then raise vehicle on the right in the same Raisingthe vehicle on the left must result in a manner until approx. 100 mm ground positive value while raising it on the right must clearance is present at the right wheels. result in a negative value, both with respect to Read off and note or store the value of the the output value. sensor in the PST 2 display. Nominalvalue: 0.55 m/s2 or greater. 6. Carry out evaluationaccording to the following Example: text. Eliminatefaults present if necessary. Outputvalue = 0.00 m/s2 raised approx. 100 mmNominal value: on the left = 0.58 m/s2 Raised on left approx. 100 mm = raised approx. 100 mm 0.55 m/s2 or greater on the right = -0.58 m/s2 Raised on right approx. 100 mm = If no change is detected by comparison with -0.55 m/s2 or greater the output value when raising the vehicle (right or left raised to the same level),then the sensor is faulty. After fault elimination, read out the fault memory with the Porsche System Tester 2 and erase the fault memory if necessary. 8 18 45 -120 45 58 01 Checking transverse acceleration sensor C4_45109 Printed in Germany -28, 1999