1993 Mazda Protege, IC Circuit Waveform

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Posted to the Waveform Library on 1/20/2005

No start capture of the IC control circuit while cranking on a 200 ms screen.

The IC control circuit is normally a 5 volt digital signal produced by the ECM. The resistance in the power transistor brings it down to approximately 2 volts.

The most likely ca...

Vehicle Data

1993 Mazda Protege DX 1.8L

Engine	1.8 L / 4 cyl / GAS
Trans	4-speed AutomaticTransaxle (Electronic)
Delivery	Fuel Injection
Subsystem	Ignition
Component	IC Circuit
Condition	Known Bad

Vehicle Data

1993 Mazda Protege DX 1.8L

Engine	1.8 L / 4 cyl / GAS
Trans	4-speed AutomaticTransaxle (Electronic)
Delivery	Fuel Injection
Subsystem	Ignition
Component	IC Circuit
Condition	Known Bad