2. Check Vehicle Speed Input
- Apply wheel chocks and jack up drive wheel.
- Disconnect ASCD control unit harness connector.
- Check voltage between control unit connector M119 terminal 22 (G/B) and ground while turning drive wheel slowly by hand.
Yes or No?
- Yes: Vehicle speed sensor is OK.
- No: Check harness for open or short between ASCD control unit connector M119 terminal 22 (G/B) and combination meter connector M39 terminal 37 (G/B).