8005 CDR23: Diagnosis/troubleshooting

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 Porsche Boxster, 2003 Porsche Boxster, 2002 Porsche Boxster, 2001 Porsche Boxster, and 2000 Porsche Boxster. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSIS/TROUBLESHOOTING - 8005 CDR23

Work instruction			Display OK	If not OK
1	Read out CDR23 fault memory	Connect and start the Porsche System Tester II 9588 and switch on the ignition Select vehicle type Boxster (986) and control unit CDR23 and press the ">>" key Read out and erase CDR23 fault memory. Switch off ignition, remove ignition key, switch on ignition again and read out fault memory	The fault is remedied -> End	Step 2
2	Check CAN comfort (high) for open circuit	Switch off ignition Pull off plug E on CDR23 Pull off plug A on the instrument cluster control module Pull off plug B on the air-conditioning system control module Measure specific resistance between pin 1 of plug E on the CDR23 control module and pin 14 of plug A on the instrument cluster control module	< 0.5 Step 3	Repair open circuit in wiring harness -> End
3	Check CAN comfort (low) for open circuit	Measure specific resistance between pin 2 of plug E on the CDR23 control module and pin 15 of plug A on the instrument cluster control module	< 0.5 Step 4	Repair open circuit in wiring harness -> End
4	Replace CDR23		-> End