Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0705: Transmission Range Switch Circuit: Description
The PNP switch is mounted on the transaxle assembly and is a multi-signal switch that indicates gearshift lever position to the TCM. The PNP switch assembly prevents the engine from cranking while in Drive or Reverse. The PNP switch uses four discrete circuits to pull four TCM inputs high in various combinations to indicate each gear range. DTC P0705 will set when the PNP switch indicates an invalid combination. See PNP SWITCH LOGIC table.
| Gearshift Lever Position | Signal "A" | Signal "B" | Signal "C" | Signal "P" | ||
|---|---|---|---|---|---|---|
| Park | HI | LOW | LOW | HI | ||
| Reverse | HI | HI | LOW | LOW | ||
| Neutral | LOW | HI | LOW | HI | ||
| Drive | LOW | HI | HI | LOW | ||
| Intermediate | HI | HI | HI | HI | ||
| Low | HI | LOW | HI | LOW | ||
|
||||||
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.