297 

 

No. 214 Speedometer non-display   

Malfunction Cause 

Solution 

Speed sensor poor operation 

Lift vehicle with two-post lift then start engine，geared, and 
accelerate, survey sensor pulse signal by oscilloscope. If 
there is no pulse signal on display screen, then the sensor is 
malfunction and must be replaced. Measure the voltage 
between both ends of speed sensor, open ignition switch, 
and rotate wheel slowly. The voltage between speed sensor 
pin 1 and pin 3 shall be 0.5~9V, between pin 2 and pin 3 
shall be 8V approximately. Otherwise, shall inspect speed 
sensor circuit. 

Speed sensor connecting circuit 
malfunction 

Measure the resistance between pin 2 of speed sensor and 
body, earth end, by multimeter, the value shall be 0 Ohm, sc. 
conducted. Set ignition switch to ON position, measure the 
voltage between pin 3 and body, earth end, the value shall 
be 7.5~9V. Otherwise, shall maintain circuit or replace 
instrument assembly. 

Speed sensor power supply circuit 
malfunction 

Lift vehicle with two-post lift, then turn shift lever to neutral 
gear and set ignition switch at ON position. Rotate front 
wheel slowly, measure the voltage between pin 1 and pin 2 
by multimeter, the value shall between 0.5V and 9V. 
Otherwise, replace speed sensor. 

Speed sensor drive or driven gear 
damaged 

Lift vehicle with two-post lift, then start engine, geared, and 
accelerate. Survey sensor pulse signal by oscilloscope, if 
there is no pulse signal on display screen, then shall inspect 
speed sensor firstly. If it finds no damage in sensor 
inspection, then shall remove driven gear from speed sensor 
rear end, as well as drive gear from gearbox output shaft, 
and survey whether it appears gear hit and miss. Replace it 
when necessary. 

LCD odometer power supply and 
instrument connecting circuit 
malfunction 

Open fuse box and check CLUSTER (10A) AM1 (30A) and 
fuse MAIN (80A), whether they are burnt. Replace them 
when necessary. Disconnect connector from grouped 
instrument assembly, measure the resistance between B7 
(GND) and body (earth end) by multimeter, as well as the 
resistance between B8 (GND) and body (earth end), and the 
value shall be 0 Ohm, sc. conducted. Otherwise, shall 
maintain connecting circuit. 

Speedometer 

non-display, sc. 

odometer non-display 

Grouped instrument inner short and 
open circuit 

Replace grouped instrument 

 

 
 

 

 

298 

 

Maintain speedometer 
sensor 

Lift front wheel and rotate 
slowly, then measure the 
voltage between speed sensor 
pin 1 and pin 2 by multimeter, 
the value shall be 0.5~9V. 

Replace drive or driven 
gear 

Lift vehicle with two-post lift, 
then start engine, geared, and 
accelerate. Survey sensor pulse 
signal by oscilloscope 

Survey instrument indicating 

condition 

Speedometer 

non-display 

Check instrument operating 
condition. Maintain instrument, 
speed sensor connecting 
harness and connecting pin 
etc. 

Maintain instrument power 
supply fuse and fuse box. 
Check CLUSTER (10A) 
AM1 (30A) and fuse MAIN 
(80A), whether they are 
burnt. 

Measure the resistance between speed 
sensor pin 2 and body by multimeter, the 
value shall be 0 Ohm. Measure the 
voltage between pin 3 and body (earth 
end), the value shall be 7.5~9V. 

Replace instrument 
assembly 

Replace 

speedometer 

sensor 

Normal 

Abnormal 

Abnormal 

Abnormal 

Abnormal 

Normal 

Normal 

 
 

 

 

299 

 

No. 215 Freedom ship speedometer malfunction, indicates automatically when pressing horn   

Malfunction Cause 

Solution 

Battery positive pole wire poor 
contact 

Check battery positive pole pin, whether it is poor contacted. Clean 

①
and tighten it when necessary. 

Set multimeter to voltage range, connect the red probe to terminal A11 

②
on instrument panel pin, the black probe to body earth lead, turn ignition 
switch to ON position, press horn button, and survey the variation of 
voltage indicator. If the indicator swings greatly, which indicates short 
circuit between speedometer and center integrated controlling circuit, 
then shall implement maintaining work. 

Instrument connecting cable short 
circuit 

Pull out instrument pin and center integrated controller pin, measure 

②
the resistance between two ends of wire harness and earth lead, of 
which value shall be infinite, sc. non-conducted. Otherwise, shall 
maintain or replace wire harness. 

Check center integrated controller surface, whether it 

③

is burnt. Smell 

center integrated controller, whether there is burnt taste. Replace center 
integrated controller when necessary. 

Disconnect center integrated controller and speedometer connecting 

④
pin, measure the resistance respectively between terminal A11 on 
instrument connector and terminal A3 of center integrated controller, the 
value shall be 0 Ohm, sc. conducted. And the resistance between any 
terminal and earth shall be infinite. Otherwise, shall replace wire 
harness

Center integrated controller inner 
short circuit or damage 

Set multimeter to voltag

⑤

e range, turn ignition switch to ON position, 

connect the red probe to terminal A3 on center integrated controller, the 
black probe to body earth lead, then press horn button and survey the 
variation of multimeter indicator. Maintain center integrated controller or 
replace it when necessary. 

Since the horn button switch is integrated in grouped switch on 

⑥
Freedom ship; therefore, once there is short circuit between horn button 
and grouped switch, they will affect each other. 

Disconnect center integrated controller and grouped switch connec

⑦

tor, 

measure the resistance between A21 and A2, as well as A22 and A3, by 
multimeter, and the value shall be 0 Ohm. Measure the resistance 
between any terminal and body earth lead, the value shall be infinite. 

Horn button cable and grouped 
switch inner short circuit 

Check circuit between grouped switch and h

⑧

orn button, whether there 

is short circuit. Disconnect center integrated controller connector, and 
measure it by multimeter. The resistance between C6 and A21, C6 and 
A22, C6 and B11, C6 and B22 shall be infinite, sc. non-conducted. Press 
horn button, the multimeter indicator shall stand still. Otherwise, it 
indicates grouped switch inner short circuit or burnt, and shall be 
replaced. 

Freedom ship 

speedometer 

malfunction, 

indicates 

automatically 

when pressing 

horn 

Grouped instrument inner circuit 

Replace instrument assembly 

 
 

 

 

300 

Pull out instrument connector and center integrated 
controller pin; inspect the harness by multimeter, 
whether there is short circuit. 

Check center integrated controller inner circuit, 

whether there is short circuit or damage 

Check instrument connecting wire. 

Check horn button circuit and grouped 
switch. 

Check center integrated controller, whether 
it is burnt. 

Connect multimeter to terminal A11 on instrument 
panel connector, set ignition switch to ON position, 
press horn button, and survey the variation of 
voltage indicator. 

Inspect, maintain, replace 

Connect multimeter to terminal A3 on center 
integrated controller, set ignition switch to ON 
position, press horn button, and survey the 
variation of voltage indicator. 

Measure the resistance between C6 and A21, C6 and 
A22, C6 and B11, C6 and B22, by multimeter, press 
horn button, and survey the variation of multimeter 
indicator. 

Inspect and maintain speedometer and 
center integrated 
controller connecting wire, whether 
there is short circuit. 
Replace center integrated controller 
when necessary. 

Inspect, maintain, replace 
 

Disconnect center integrated controller and grouped switch 
connector, measure the resistance between A21 and A2, 
as well as A22 and A3, by multimeter. 

Replace grouped switch assembly 

Inspect, maintain, replace 

Abnormal 

Abnormal 

Abnormal 

Swing 

Swing 

Swing 

speedometer moves automatically 
when pressing the horn (CK)