Transmission Range Switch Logic
WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Transmission Range Switch Logic
| Gear Selector Position | Signal A | Signal B | Signal C | Signal P |
|---|---|---|---|---|
| Park (P) | LOW | HI | HI | LOW |
| Reverse (R) | LOW | LOW | HI | HI |
| Neutral (N) | HI | LOW | HI | LOW |
| Drive 4 (OD) | HI | LOW | LOW | HI |
| Drive 3 (3) | LOW | LOW | LOW | LOW |
| Drive 2 (2) | LOW | HI | LOW | HI |
| Drive 1 (1) | HI | HI | LOW | LOW |
| HI = Ignition voltage LOW = 0 volts |
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