35
Model UT107: OPERATING MANUAL
F. Trigger Voltage Battery Load Testing
Set the rotary switch to
20 VDC
.
As prompted at the LCD connect terminal, insert the
red test lead into the
V
terminal and the black one into
the
COM
terminal.
Interrupt the ignition system to disable the start of the
automobile.
Cut off the main ignition coil, shunt coil, cam and
starting sensor so as to interrupt the ignition system.
Operate according to the automotive manual.
Connect the black test lead probe to the negative pole
of the battery and the red one to the positive pole of
the battery.
Start the engine continuously for 15 seconds and the
testing results are shown in contrast as follows. If it
is within the range, the starting system is normal; on
the contrary, it is shown that there may be something
wrong with the battery cable, starting system cable,
starting solenoid or starting motor.
1.
2.
3.
4.
5.
Upon the start of the engine, test the battery to see if it
can offer an adequate voltage.
Voltage
Temperature
9.6 V or more
9.5 V
9.4 V
9.3 V
9.1V
8.9 V
8.7 V
8.5 V
21.1
0
C (70
0
F)
15.6
0
C (60
0
F)
10.0
0
C (50
0
F)
4.4
0
C (40
0
F)
-1.1
0
C (30
0
F)
-6.7
0
C (20
0
F)
-12.2
0
C (10
0
F)
-17.8
0
C (0
0
F)
