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2005 GMC Sierra 1500, ECM/Inputs/Outputs Waveform
Vehicle was a crank/ no start and run but cut out. Setting P0335 and P0336. Found CMP Sensor shorting 12 ref, which is shared in the PCM, to 3 volts. This capture was taken after new CMP installed and vehicle is running. Both signals now switching to 12 volts.
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| Engine | 4.8 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Good |
References
Vehicle Data
2005 GMC Sierra 1500 4.8L
| Engine | 4.8 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | |
| Condition | Known Good |
Video