80-19Fault code 34 · Air-conditioning CAN Bus off

911 Turbo (996) Air conditioning H01, H02 80 80-19Fault code 34 Air-conditioning CAN Bus off Diagnostic conditions • Ignition on Possible cause of fault ♦Short circuit between the two CAN leads (CAN-high and CAN-low) ♦Short circuit between CAN-high (Comfort) and ground ♦Short circuit between CAN-low (Comfort) and voltage ♦A faulty control module connected to CAN comfort bus Note! ♦The CAN Comfort bus is connected to the following control mod- ules: ♦Air conditioning ♦Instrument cluster Note! During the troubleshooting, the plugs on the instrument cluster are re-attached in Step 4 while the plugs on the air-conditioning system control module remain removed. Due to the system, this causes the fault code "9115 air-conditioning control module" to be entered in addition into the fault memory of the instrument cluster. Affected terminals Plug B, terminals 1 and 2 8001 Fault code 34 80-19 page 1 Printed in Germany – 15, 2001 34xxxh02