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1997 Subaru Legacy, GEN (Alternator) Waveform
Posted to the Waveform Library on 7/31/2006

Bad diode captured at idle with headlights on. Yellow trace is Amp probe on 40A setting, around alternator output wire. Green trace is A/C voltage from Alt+ to B+.

 

car Vehicle Data

1997 Subaru Legacy Postal 2.2L

Engine2.2 L / 4 cyl / GAS
Trans4-speed AutomaticTransaxle (Electronic)
DeliveryFuel Injection
SubsystemBATT/Charging/Starting
Component
ConditionKnown Bad

car Vehicle Data

1997 Subaru Legacy Postal 2.2L

Engine2.2 L / 4 cyl / GAS
Trans4-speed AutomaticTransaxle (Electronic)
DeliveryFuel Injection
SubsystemBATT/Charging/Starting
Component
ConditionKnown Bad