940 L4-2.3L SOHC VIN 88 B230F (1992)
Speedometer Head: Testing and Inspection
Speedometer Not Working at All
1. Open circuit in vehicle speed sensor ground connection.
2. Vehicle speed sensor ground connection short circuited to ground or battery potential.
3. Open circuit in speed sensor signal wiring.
4. Vehicle speed sensor signal wiring short circuited to ground or battery potential.
5. Open circuit in speed sensor.
6. Short circuit in speed sensor.
7. Speedometer defective.
