SK-8402
取扱説明書(英文)
_P32
NORMAL TEST
32
④
Insert red test pin to the space of sensor signal
cable from the backside of connecting couplers of
O2 sensor or ECU (see "Confirmation of O2 Sensor
Cables" and "Colors of O2 Sensor Cables" in page
17). Test procedures are the same as when using
the check harness.
※
Insert test pin deeply to have a enough continuity.
※
If "
−−−
" remains displayed when checking the
heater cable voltage, insert test pin into another
heater cable. If LCD still displays "
−−−
", cable
disconnection, or blowout of a fuse that is
mounted on vehicle may occur.
Red test pin
Sensor signal cable
①
Connect red test pin to red test lead straight plug.
②
Connect alligator clip to black test lead straight plug.
③
Fix alligator clip to the metal frame part of the car or
minus terminal of battery for earthing.
※
LCD display might be drifting when connecting
the test leads or the cables due to the high input
impedance of this instrument, but does not affect
the measurement.
●
Testing procedure when O2 sensor and ECU
cannot be connected by check harness
Alligator clip
Black test lead straight plug
Red test lead
straight plug
Red test pin
3. Measurement Procedure with Test Pin