72-27Fault code 23 · Pot. mirror right vertical - short circuit

911 Turbo (996) Seat memory S02 72 72-27Fault code 23 Pot. mirror right vertical - short circuit Diagnostic conditions • Ignition on • Switch for memory seat adjustment actuated Possible cause of fault ♦Short circuit in supply lead to pot. for right rearview mirror, verti- cal ♦Potentiometer faulty ♦Control module faulty Affected terminals Plug 7, terminals 4, 5 and 7 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check 5V supply voltage ♦Switch off ignition approx. 5V ⇒ Step 4 of the "carrier with gear ⇒ Step 2 ♦Pull off plug on "carrier with unit" gear unit" ♦Switch on ignition ♦Measure voltage between pin 3 and ground 2 Check ground lead of the ♦Measure voltage on plug of the approx. 5V ⇒ Step 7 "carrier with gear unit" "carrier with gear unit", ⇒ Step 3 between pins 3 and 7 3 Check signal lead of the ♦Select "Voltage of right vertical 0V without jumper ⇒ Step 8 "carrier with gear unit" mirror potentiometer" in menu Approx. 5 V with item "Actual values" jumper ⇒ Step 11 ♦Connect jumper between pins 3 and 5 7298 Fault code 23 72-27 page 1 Printed in Germany – 3, 2001 23xxxS02