Service manual

3-58 FUEL SYSTEM (DFI)
Speed Sensor (Service Code 24)
Output Voltage Inspection
•
Before this inspection, inspect the input voltage (see Input
Voltage Inspection in the Speed Sensor section).
NOTE
○
Be sure the battery is fully charged.
•
Turn the ignition switch OFF.
•
Using the jack, raise the rear wheel off the ground.
Special Tool - Jack: 57001-1238
•
Remove the speed sensor (see Speed Sensor Removal
in the Electrical System chapter).
•
Connect the measuring adapter [A] between the harness
connector [B] and speed sensor connector [C].
Special Tool - Speed Sensor Measuring Adapter: 57001
-1667
•
Reinstall the speed sensor with the measuring adapter
connected.
•
Connect a digital meter [D] to the measuring adapter lead
connectors.
Speed Sensor O utput Voltage
Connections to Adapter
Meter (+) → BL (sensor P) lead
Meter (–) → BL/Y (sensor BK/Y) lead
•
Measure the output voltage with the engine stopped, and
with the connectors joined.
•
Turn the ignition switch ON.
Output Voltage at Sensor
Standard: less than DC 0.8 V or over th an DC 4.8 V
•
Rotate the rear wheel by hand, confirm the output voltage
will be raise or lower.
If the reading is out of the range, replace the speed sensor
(see Switch and Sensors section in the Electrical System
chapter) and check the wiring to ECU (see next diagram).
If the reading, speed sensor and wiring are good, replace
the ECU (see ECU section).
•
Turn the ignition switch OFF.