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2002 Chevrolet Trailblazer LT, ECM/Inputs/Outputs Waveform
CH1=APP1 SIGNAL, CH2=APP2 SIGNAL. NOTE 3V TOGGLING ON APP2 SIGNAL, THIS IS COMING FROM INSIDE THE PCM. APP2 SIGNAL WAS NORMAL AFTER PCM REPLACEMENT.
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| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |
Vehicle Data
2002 Chevrolet Trailblazer LT 4.2L
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Bad |
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