Work instruction Display OK If not OK · 6 Check 5 V supply lead ♦

911 Turbo (996) Headlight beam adjustment HBA 01 94 Work instruction Display OK If not OK 6 Check 5 V supply lead ♦Switch ignition on 0 V Repair wiring har- for short to B+ Continue with 7 ness ♦Measure voltage between the End plug on the control module for HBA pin 14 and ground 7 Check 5 V supply lead ♦Switch off ignition < 5 Ω Repair wiring har- for open circuit Continue with 10 ness ♦Measure resistance between End the plug on the control module for HBA pin 14 and the plug on the angle sensor for HBA, front, pin 5 ♦Measure resistance between the plug on the control module for HBA pin 14 and the plug on the angle sensor for HBA, rear, pin 5 8 Check ground lead of the ♦Measure resistance between < 5 Ω Repair wiring har- sensors for open circuit the plug on the control module Continue with 10 ness for HBA pin 17 and the plug on End the angle sensor, front, pin 1 ♦Measure resistance between the plug on the control module for HBA pin 17 and the plug on the angle sensor, rear, pin 1 9 Replace angle sensor for HBA at front or rear. End 10 Replace control module End 9492 Fault code 5 94-11 page 3 Printed in Germany, 2001 5xxxlw01