DTC P0706: Transaxle Range Switch Performance: Description

Transaxle range switch determines which gear position has been manually selected. PCM determines this gear selection by detecting a combination of opens and grounds at 4 switch inputs of transaxle range switch. When a switch is open, PCM code input will be high (near ignition voltage). When switch is closed, PCM code input will be low (zero volts). Specific combination of highs and lows (opens and grounds at switch) for 4 code inputs at PCM denote which gear position has been selected. Only one combination is possible for each manual gear selected. DTC sets when 2 PCM code inputs are low (switch is grounding 2 circuits) indicating a valid combination, but that combination is irrational for current operating parameters.