Fault, Fault code Possible causes, elimination, notes · Connectohmmeter to connector A 12 and drive motor connector

911 Carrera (996) Heating diagnosis Fault, Fault code Possible causes, elimination, notes Connectohmmeter to connector A 12 and drive motor connector pin 3. Display: < 5 .Q. Connect ohmmeter to connector D 10 and drive motor connector pin 4. Display: < 5 Q Connect ohmmeter to connector D 2 and drive motor connector pin 5. Display: < 5 Q 5. Check wire from connector C 8 to drive motor pin 1 for short to B+ and short to ground. 6. Check wire from connector B 8 to drive motor pin 2 for short to B+ and short to ground. 7. Check wire from connector A 12 to drive motor pin 3 for short to B+, 8. Check wire from connector D 10 to drive motor pin 4 for short to B+ and short to ground. 9. Check wire from connector D 2 to drive motor pin 5 for short to B+ and short to ground. Test point 8 Motor of central Diagnosis conditions valve No control module fault stored. No fault with supplyvoltage (5 volts). Signalimplausible Fault code 27 Signal implausible 1. Check central valve for smooth operation. 2. UnplugconnectorsA, 8, C and0 from the heating/air-conditioning control. 80 01 Diagnosis/troubleshooting, heating 80 -D 23 Printed in Germany -11, 1998 99680Dl