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2003 Chevrolet Silverado 1500 HD LS, ECM/Inputs/Outputs Waveform
Communication drop outs during failure. The signal biased high is the PCM and the one that drops close to 0v is the TAC. When the failure occurs the TAC communication signal doesn't get sent and the check pulse on APP signal
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| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Bad |
References
Vehicle Data
2003 Chevrolet Silverado 1500 HD LS 6.0L
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | , |
| Condition | Known Bad |
Video