Transmission Range Switch Logic
WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. 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/Neutral (P) | LOW | HI | HI | LOW |
| Reverse (R) | LOW | LOW | HI | HI |
| Park/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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