8018 External BOSE amplifier: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING - 8018 EXTERNAL BOSE AMPLIFIER

Work instruction			Display OK	If not OK
1	Check wiring harness and woofer	Connect the Porsche System Tester II 9588 to the diagnostic socket; switch on the ignition and the Porsche System Tester II 9588 Select 986 as the vehicle type 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 woofer	Switch off ignition Pull off plug A on the amplifier Check resistance on plug A, pins 16 and 4	= 5 Step 6	Step 3
3	Check wiring harness to woofer	Pull off the plugs on the loudspeakers Check the resistance in the wire between pin 4 on plug A of the amplifier and pin 1 of the plug for the front right door loudspeaker	< 5 Step 2	Open circuit in the wire/short circuit to ground; Repair wiring harness -> End
4	Check wiring harness to woofer	Check the resistance in the wire between pin 16 on plug A of the amplifier and pin 2 of the plug for the front right door loudspeaker	< 5 Step 5	Open circuit in the wire/short circuit to ground; Repair wiring harness -> End
5	Replace woofer		-> End	Step 6
6	Replace amplifier		-> End	-