Suzuki DF 40 Service Manual page 95

OIL PRESSURE SWITCH
09940-44120 : Air pressure gauge
09821-00004 : Air pump Assy
09930-99320 : Digital tester
Tester range :
(1) Remove oil pressure switch. (See page 3-50.)
(2) Connect the gauge and pump as shown.
(3) While applying pressure to oil pressure switch, check conti-
nuity.
Oil pressure switch function :
Pressure
2
kPa (kg/cm )
Less than
70 – 130 (0.7 – 1.3)
70 – 130 (0.7 – 1.3)
or over
ECM MAIN RELAY
09930-99320 : Digital tester
Tester range :
(1) Disconnect ECM main relay from wire.
(2) Check continuity between terminal
is applied. Connect positive (+) side to terminal
tive (–) side to terminal
ECM main relay function :
12 V power
Applied
Not applied
Be careful not to touch 12 V power supply wires to each
other or with other terminals.
(Continuity)
Continuity
Yes
No
(Continuity)
and each time 12V
.
Continuity
Yes
No
ENGINE CONTROL SYSTEM 3-40
Oil pressure
switch
, and nega-
ECM main relay
12V