Diagnosis/troubleshooting for Harman

DIAGNOSIS/TROUBLESHOOTING (8003 HARMAN EXTERNAL AMPLIFIER)

Work instruction			Display OK	If not OK
1	Read out external amplifier fault memory	Connect the Porsche System Tester II 9588 to the diagnostic socket; switch on the ignition and the Porsche System Tester II 9588 Select vehicle type 911 Turbo (996) and start the automatic control module search In the Control units menu, select PCM2 In the PCM2 menu, select External amplifier Make a selection in the Fault memory menu and start with the ">>" key Read out fault memory Erase fault memory Remove ignition key and switch on ignition again Read out fault memory Extract ambient data, press the ">>" key	->End	Fault code is still displayed Step 2
2	Check wiring harness and left dashboard loudspeaker	Switch off ignition Pull off plug A on the amplifier Measure resistance on plug A, pins 5 and 14	= 4 5	Step 3
3	Check wiring harness to left dashboard loudspeaker	Pull off the plugs on the loudspeakers Check the resistance in the wire between pin 5 on plug A of the amplifier and pin 2 of the plug for the front right door loudspeaker	< 0.5 Step 4	Repair open circuit in wiring harness -> End
4	Check wiring harness to left dashboard loudspeaker	Pull off the plug on the left dashboard loudspeaker Check the resistance in the wire between pin 14 on plug A of the amplifier and pin 1 of the plug for the front right door loudspeaker. Select	< 0.5 Step 6	Repair open circuit in wire -> End
5	Check wiring harness to left dashboard loudspeaker	Pull off the plugs on the loudspeakers Check the resistance in the wire from pin 5 on plug A of the amplifier to pin 14	Step 6	Repair short circuit in wiring harness -> End
6	Check wiring harness to left dashboard loudspeaker	Check the resistance in the wire from pin 14 on plug A of the amplifier to ground	Step 7	Short circuit to ground. Repair wiring harness -> End
7	Check wiring harness to left dashboard loudspeaker	Check the resistance in the wire from pin 5 on plug A of the amplifier to ground	Step 8	Short circuit to ground. Repair wiring harness -> End
8	Check wiring harness to left dashboard loudspeaker	Check the voltage of the wire from pin 5 on plug A of the amplifier to ground Switch ignition on	0V Step 9	Repair short circuit to B+ in the wiring harness -> End
9	Check wiring harness to left dashboard loudspeaker	Check the voltage of the wire from pin 14 on plug A of the amplifier to ground Switch ignition on	0V Step 10	Repair short circuit to B+ in the wiring harness -> End
10	Check wiring harness and right dashboard loudspeaker	Switch off ignition Pull off plug A on the amplifier Measure resistance on plug A, pins 6 and 15	= 4 13	Step 11
11	Check wiring harness and right dashboard loudspeaker	Pull off the plugs on the loudspeakers Check the resistance in the wire between pin 6 on plug A of the amplifier and pin 1 of the plug for the front right door loudspeaker	< 0.5 Step 12	Repair open circuit in wiring harness -> End
12	Check wiring harness and right dashboard loudspeaker	Check the resistance in the wire between pin 15 on plug A of the amplifier and pin 2 of the plug for the front right door loudspeaker	< 0.5 Step 13	Repair open circuit in wire -> End
13	Check wiring harness and right dashboard loudspeaker	Check the resistance in the wire from pin 6 on plug A of the amplifier to pin 14	Step 14	Repair short circuit in wiring harness -> End
14	Check wiring harness to right dashboard loudspeaker	Check the resistance in the wire from pin 15 on plug A of the amplifier to ground	Step 15	Short circuit to ground. Repair wiring harness -> End
15	Check wiring harness to right dashboard loudspeaker	Check the resistance in the wire from pin 6 on plug A of the amplifier to ground	Step 16	Short circuit to ground. Repair wiring harness -> End
16	Check wiring harness to right dashboard loudspeaker	Check the voltage of the wire from pin 6 on plug A of the amplifier to ground Switch ignition on	0 V Step 17	Repair short circuit to B+ in the wiring harness -> End
17	Check wiring harness to right dashboard loudspeaker	Check the voltage of the wire from pin 15 on plug A of the amplifier to ground Switch ignition on	0 V Step 18	Repair short circuit to B+ in the wiring harness -> End
18	Left dashboard loudspeaker	Check resistance on plug A of the loudspeaker, pins 1 and 2	= 4 Step 19	Step 20
19	Right dashboard loudspeaker	Check resistance on plug A of the loudspeaker, pins 1 and 2	= 4 Step 22	Step 21
20	Replace left dashboard loudspeaker		-> End	Step 19
21	Replace right dashboard loudspeaker		-> End	Step 11
22	Replace amplifier		-> End	-