HBA diagnosis 911 Carrera (996) · Function of individual components 4. Angle sensor for HBA, f

HBA diagnosis 911 Carrera (996) Function of individual components 4. Angle sensor for HBA, front The sensor is fastened on the left side of the 1. Control module front axle and is connectedto the axle strut by The control module is installed on the a linkage. A sensor measuresthe compression passenger'sside below the passenger's travel and forwards this value as a sensor airbag unit. If the control module is replaced, voltage to the control module. the following points must be observed: 5. Headlights 1. Coding of the vehicle type Each headlight includesa stepper (servomotor for HBA)which is activated by the control 2. Calibration of the control module module. Figure 407_99 (arrow) shows the connectionsfor the respective servomotor. 3. Adjustment of the headlights Headlight without lens If a new control module is installed, fault codes "6 Control unit coding error" and "7 Calibration not performed yet' are stored. Remedy: Start the automatic control module search and code the vehicle type. Then perform a calibration and then erase the fault memory. Adjust the headlights after calibration. 2. Main light switch The HBAsystem is activated when the parking light is switched on (terminal 58). The headlights are set to high-beamposition when the 9_69_99 high-beamswitch is operated. 1. Ignition unit 3. Angle sensor for HBA, rear 2. Lamp plug 3. Lamp fastenerThe sensor is fastened on the left side of the 4. Servomotorfor HBA(stepper motor)rear axle and is connected to the lower axle 5. Parking lightstrut by a linkage. 6. High beamA sensor measures the compression travel and forwards this value as a sensor voltage to the control module. 94 -D 8 94 92 Diagnosis/troubleshooting HBA