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1992 Ford Truck F-150, ECM/Inputs/Outputs Waveform
PRNDL switch on this system uses a reference to ground through the swich. Each gear position has a different resistor, therefore the voltage drop to ground changes with gear position. The high voltage reference is park.
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| Engine | 4.9 L / 6 cyl |
| Subsystem | ECM/Inputs/Outputs |
| Condition | Known Good |
References
Vehicle Data
1992 Ford Truck F-150 4.9L
| Engine | 4.9 L / 6 cyl |
| Subsystem | ECM/Inputs/Outputs |
| Condition | Known Good |
Video