9603 Telephone/telematics: 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 - 9603 TELEPHONE/TELEMATICS

Work instruction			Display OK	If not OK
1	Read out telephone fault memory	Connect and start the Porsche System Tester II 9588 and switch on the ignition Select vehicle type Boxster 986 and start the automatic control module search In the Control units menu, select PCM2 Using the selection button, click Telephone in the Function selection menu and start it with the ">>" key Using the selection button, click Fault memory in the Telephone function selection menu and start it with the ">>" key Read out fault memory Erase fault memory Remove ignition key and switch on ignition again Read out fault memory	-> End	Fault code is displayed Step 2
2	Check wiring harness to the additional receiver	Switch off ignition Pull off plug A on the telephone control module Pull off plug A on the additional telephone receiver Measure resistance between plug A on the telephone control module, pin 24 and pin 1 on the plug on the additional telephone receiver	< 0.5 Step 3	Repair wiring harness -> End
3	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 25, and pin 2 on the plug on the additional telephone receiver	< 0.5 Step 4	Repair wiring harness -> End
4	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 8, and pin 3 on the plug on the additional telephone receiver	< 0.5 Step 5	Repair wiring harness -> End
5	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 20, and pin 4 on the plug on the additional telephone receiver	< 0.5 Step 6	Repair wiring harness -> End
6	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 22 and pin 5 on the plug on the additional telephone receiver	< 0.5 Step 7	Repair wiring harness -> End
7	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 26, and pin 6 on the plug on the additional telephone receiver	< 0.5 Step 8	Repair wiring harness -> End
8	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 24, and ground	Step 9	Repair short circuit to ground in the wiring harness -> End
9	Check wiring harness to the additional receiver	Measure resistance between plug A on the telephone control module, pin 25, and ground	Step 10	Repair short circuit to ground in the wiring harness -> End
10	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 8, on the telephone control module and ground	v Step 11	Repair short circuit to ground in the wiring harness -> End
11	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 20, on the telephone control module and ground	Step 12	Repair short circuit to ground in the wiring harness -> End
12	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 22, on the telephone control module and ground	Step 13	Repair short circuit to ground in the wiring harness -> End
13	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 26, on the telephone control module and ground	Step 14	Repair short circuit to ground in the wiring harness -> End
14	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 3, on the telephone control module and ground	Step 15	Repair short circuit to ground in the wiring harness -> End
15	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 24, on the telephone control module and ground Switch ignition on	0 V Step 16	Repair short circuit to B+ in the wiring harness -> End
16	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 25, on the telephone control module and ground Switch ignition on	0 V Step 17	Repair short circuit to B+ in the wiring harness -> End
17	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 8, on the telephone control module and ground Switch ignition on	0 V Step 18	Repair short circuit to B+ in the wiring harness -> End
18	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 20, on the telephone control module and ground Switch ignition on	0 V Step 19	Repair short circuit to B+ in the wiring harness -> End
19	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 22, on the telephone control module and ground Switch ignition on	0 V Step 20	Repair short circuit to B+ in the wiring harness -> End
20	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 26, on the telephone control module and ground Switch ignition on	0 V Step 21	Repair short circuit to B+ in the wiring harness -> End
21	Check wiring harness to the additional receiver	Measure voltage between plug A, pin 3, on the telephone control module and ground Switch ignition on	0 V Step 22	Repair short circuit to B+ in the wiring harness -> End
22	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 24, on the telephone control module and pins 25, 8, 20, 22, 26 and 3	Step 23	Repair short circuit between wires in the wiring harness -> End
23	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 25, on the telephone control module and pins 8, 20, 22, 26 and 3	Step 24	Repair short circuit between wires in the wiring harness -> End
24	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 8, on the telephone control module and pins 20, 22, 26 and 3	Step 25	Repair short circuit between wires in the wiring harness -> End
25	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 20, on the telephone control module and pins 22, 26 and 3	Step 26	Repair short circuit between wires in the wiring harness -> End
26	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 22, on the telephone control module and pins 26 and 3	Step 27	Repair short circuit between wires in the wiring harness -> End
27	Check wiring harness to the additional receiver	Measure resistance between plug A, pin 26, on the telephone control module and pin 3	Step 28	Repair short circuit between wires in the wiring harness -> End
28	Replace handset		-> End	Step 29
6	Replace telephone control module		-> End