DR-3A Fault Code 15 Speed Sensor Circuit
1. Place ignition switch in Off position and connect diagnostic read-out tool to engine test connector.
2. Remove air cleaner assembly, then remove speed sensor from transaxle.
3. Place system in Switch Test Mode.
4. Slowly rotate speed sensor and note display reading on diagnostic tool.
5. If display on read-out tool changes, check speed sensor to transaxle engagement.
6. If display on read-out tool does not change, proceed to Test 3 step B.