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2005 GMC Sierra 1500, ECM/Inputs/Outputs Waveform
Vehicle would crank/no start at times and run but cut out. Vehicle would set P0335 and P0336. Channel one is 12 volt ref to CKP and channel 2 is CKP. The 12 ref to CKP is shared with 12 ref to CMP inside PCM. The CMP was found to be shorting the 12 volt ref to...
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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 Bad |
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 Bad |
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