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2003 GMC Yukon Denali, ECM/Inputs/Outputs waveform
Yellow trace is TAC module supply, blue trace is TPS2 signal, red is TAC module ground. All grounds were checked, even the hard to reach at rear of cyl head. This is with an external ground using a bed of nails to bat. negative.
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| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | Other |
| Condition | Known Bad |
References
Vehicle Data
2003 GMC Yukon Denali 6.0L
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | Other |
| Condition | Known Bad |
Video