3-66 FUEL SYSTEM (DFI)
Speed Sensor (Service Code 24)
Disconnect the speed sensor connector [A], and connect
the harness adapter [B] between the harness connector
and speed sensor connector.
Connect a digital meter to the harness adapter leads.
Special Tool - Speed Sensor Measuring Adapter: 57001
Speed Sensor Output Voltage
Connections to Sensor
Meter (+) → Y lead [C]
Meter (–) → BK/Y lead [D]
Measure the sensor output voltage with the engine
stopped, and with the connector joined.
Turn the ignition switch ON.
Output Voltage at Sensor
Standard: About DC 0.05 ∼ 0.07 V
If you can rotate the drive shaft, the output voltage will
If the reading is out of the range, check the speed sensor
(see Speed Sensor Inspection in the Electrical System
chapter) and the wiring to ECU (see wiring diagram in this
If the reading, speed sensor and wiring are good, replace
the ECU (see ECU Removal/Installation in this chapter).
2. Meter Unit
3. Speed Sensor