Sonata & Tiburon
- Disconnect vehicle speed sensor harness connector. Remove vehicle speed sensor. On Sonata, using a fused jumper wire set, connect battery voltage to vehicle speed sensor terminal No. 1 (A/T) or No. 2 (M/T). Connect ground to vehicle speed sensor terminal No. 1 (M/T) or No. 2 (A/T). Connect positive lead of voltmeter to vehicle speed sensor terminal No. 3, and negative lead to terminal No. 1 (M/T) or No. 2 (A/T).
- On Tiburon, using a fused jumper wire set, connect battery voltage to vehicle speed sensor terminal No. 3. Connect ground to vehicle speed sensor terminal No. 1. Connect positive lead of voltmeter to vehicle speed sensor terminal No. 2 and negative lead to terminal No. 1.
- On all models, rotate vehicle speed sensor by hand. Voltage change should toggle from zero to 11 volts or more, 4 times per revolution. If vehicle speed sensor does not operate as specified, replace sensor.