Operation CHARM
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Porsche
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1989
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928 S4 V8-4957cc 5.0L
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Repair and Diagnosis
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Lighting and Horns
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Technical Service Bulletins
Lighting and Horns: Technical Service Bulletins
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Customer Interest
Stop Lamp Warning Lamp - ON When Using Telephone
By Symptom
Abnormal wear/deterioration
Brake Light/Cruise Control Fuse - Blown
Customer Interest
Stop Lamp Warning Lamp - ON When Using Telephone
False instrument warning light/gauges
Stop Lamp Warning Lamp - ON When Using Telephone
All Technical Service Bulletins
Stop Lamp Warning Lamp - ON When Using Telephone
Horn Buttons - Repairing On Vehicles WIth Air Bags
Brake Light/Cruise Control Fuse - Blown