177

2. SPEEDOMETER MALFUNCTION

CIRCUIT DIAGRAM

INSPECTION

(a) Inspect the combination meter assembly

1

Remove the combination meter assembly and retain the connection of connectors.

2

Inspect continuity

Inspect continuity between terminals

Standard:

3

Inspect voltage between terminals

Standard:

Result and solution:

If it is abnormal, go to (b) Inspect the combination meter assembly speed input signal

If normal, go to (c) Inspect the combination meter assembly

Tester connection

Condition

Standard condition

A9 - ground

Normal condition

Continuity

Speedometer Sensor

Combined Meter Assembly

Ground the 
Speedometer Sensor

Speedometer Sensor+8V 
Power Source

Speed Signal

Tester connection

Condition

Standard condition

A10 - ground

Turn the ignition switch to ON

7.5 – 9V

178

(b) Inspect the combination meter assembly speed input signal

1

Inspect voltage

Hold the front wheels up

Push the shift lever to NEUTRAL

Turn the ignition switch to ON

Slowly turn the front wheel, measure the voltage between terminal A9 and A11

Standard voltage is as follows:

Voltage changes alternately

Result and solution:

Normal   Replace the combination meter assembly

If abnormal, inspect the speed sensor

2

Inspect the speed sensor

 Inspect continuity

Inspect continuity between terminals

Standard:

Tester connection

Condition

Standard condition

2 - ground

Normal condition

Continuity

Turning Wheels

Below 0.5V

179

Inspect voltage between terminals

Standard:

Result and solution:

Abnormal

Repair or replace the harness or connector

Normal

Inspect the speed sensor output signal

3

Inspect the speed sensor output signal

Inspect voltage

Hold the front wheels up

Push the shift lever to NEUTRAL

Turn the ignition switch to ON

Slowly turn the front wheel, measure the voltage between terminal 1 and 2

Standard voltage is as follows:

Voltage changes alternately

Result and solution:

Normal

Repair or replace the harness or connector

Abnormal

replace the speed sensor

Turning Wheels

Below 0.5V

Tester connection

Condition

Standard condition

3 - ground

Turn the ignition switch to ON

7.5 – 9V

180

(c) Inspect the combination meter assembly

1

Remove the combination meter assembly and disconnect connectors.

2

 Inspect continuity

Inspect continuity between terminals

Standard:

3

Inspect voltage between terminals

Result and solution:

Abnormal

Repair or replace the harness or connector

Normal

Replace the combination meter assembly

Tester connection

Condition

Standard condition

B7 - ground

Normal condition

Continuity

B8 - ground

Normal condition

Continuity

Tester connection

Condition

Standard condition

B4 - ground

Turn the ignition switch to ON

10 – 14V