Transmission Mode Switch: Testing and Inspection
D3 Switch Test1. Remove the driver's side dashboard lower cover.
2. Disconnect the D3 switch/park pin switch/A/T gear position indicator panel light harness connector.
3. Check for continuity between D3 switch/park pin switch/A/T gear position indicator panel light harness connector terminals No. 1 and No. 3 when pressing the D3 switch.
4. There should be continuity when pressing the D3 switch once, and there should be no continuity when pressing the D3 switch again.
5. If the D3 switch is OK, connect the connector and install the driver's dashboard lower cover. If the switch is faulty, replace the D3 switch.