94-9Fault code 3 · Axle position sensor, front (angle sensor for HBA)

911 Turbo (996) Headlight beam adjustment HBA 01 94 94-9Fault code 3 Axle position sensor, front (angle sensor for HBA) Diagnostic conditions • Ignition on • Terminal 58 on Possible cause of fault ♦Short circuit to voltage/ground or open circuit in the supply leads between the control module and angle sensor for HBA, front ♦The sensor linkage is disengaged or faulty ♦Angle sensor for HBA, front, is faulty ♦The control module is faulty Affected terminals Terminals 12, 14 and 17 Diagnosis/Troubleshooting Work instruction Display OK If not OK 1 Visual inspection ♦Visual inspection of the sensor Continue with 2 Repair linkage and/ linkage or plastic holder End ♦Visual inspection of the plastic holder for the sensor 2 Check 5 V supply volt- ♦Switch off ignition approx. 5 V Continue with 5 age of the sensor Continue with 3 ♦Pull plug off the angle sensor for HBA, front ♦Switch ignition on ♦Measure voltage between pin 5 of the sensor plug and ground 3 Check ground lead of the ♦Measure voltage between pin 5 approx. 5 V Continue with 8 sensor and pin 1 of the sensor plug Continue with 4 4 Check signal wire of the ♦In the PST2 menu item Actual approx. 5 V Continue with 9 sensor values, select Sensor voltage, Continue with 12 spring travel 1 (front) ♦Connect a jumper to pins 4 and 5 of the sensor plug 9492 Fault code 3 94-9 page 1 Printed in Germany, 2001 3xxxlw01