SK-8402
取扱説明書（英文）
_P36
SIMULATION TEST
36
※
To stop the "OL" blinking, turn off the instrument
or finish the simulation test.
※
Checking control conditions of ECU and changes
of output waveform from O2 sensor are effective
for detecting cable connection error, O2 sensor
error or ECU error.
※
When "OL" blinks on LCD during the simulation
test, O2 sensor error, cable connection error or
lower O2 sensor impedance than the threshold
may occur.
⑧
Press SEL Key for 1 second or more to close
simulation test mode and to enter the stand-by
mode.
⑨
When finishing the simulation test, follow the
procedures described from
⑩
to
⑭
in page 3
1.
⑦
Press TEST Key for 1 second or less. The instrument
outputs RICH or LEAN simulation signals for 3
seconds with sign on LCD. 3 seconds interval
is necessary for next signal output.
TEST
RICH signal output
V
RICH
TEST
Z
S
APO
LEAN signal output
mV
TEST
Z
S
LEAN
APO
Trouble of O2 sensor (internal short circuit)
Short circuit of the cable connection
Internal impedance of the O2 sensor
becomes lower than the threshold of
simulation test. (There is no problem
when O2 sensor works normally)
Example 1 :
Example 2 :
Example 3 :
