9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
Test results OK?
YES
-
Go to step 6.
NO
-
Rectify the lead between pin 2 in the micro- phone's female connector and pin 10 in the mobile telephone connection.
-
Go to step 8.
6. Check the lead for short-circuiting to ground, continued
-
Take a resistance reading.
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Red test lead: Microphone, roof console: 1.
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Black test lead: vehicle battery: B-.
-
The reading should be infinity.
Test results OK?
YES
-
Go to step 7.
NO
-
Rectify the lead between pin 1 in the microphone's female connector and pin 9 in the mobile telephone connection.
-
Go to step 8.
7. Checking the handsfree unit
-
The fault is not in the car's wiring harness.
-
Check the handsfree unit and leads as described by the supplier of the handsfree unit.
Test results OK?
YES
-
Replace: Microphone, roof console.
-
Go to step 8.
NO