Mazda 323 Workshop Manual Supplement page 170

FUELSYSTEM
F2
FUEL PUMP CONTROL UNIT
I I
93GOF2-775
1
93GOF2-799
I
93GOF2-800
I
93GOF2.776
FUEL PUMP CONTROL UNIT [BP TURBO]
l
Refer to page Fl-12 for BP SOHC model.
hspection
1. Remove the fuel pump control unit.
2.
Disconnect the fuet pump controt unit connector.
3.
Check ctintinuity between the fuel pump control unit con-
nector terminal B (Y/L) and a ground.
4. Perform the following inspection according to the results of
the continuity check.
Continuity exists
1. Turn the ignition switch ON.
2. Ground the fuel pump control unit
terminal
B (Y/L) with a
jumper wire and verify that the voltage at the fuel pump con-
trol unit terminal D (in') is OV.
3. Remove the jumper wire and verify that the voltage at the
fuel pump control unit terminal D (L/Y) is
approx. WV
af-
ter
approx. IO sec.
No continuity exists
1. Turn the ignition switch ON
and
verify that the voltage at
the fuel pump control unit terminal D (L/Y) is
OV.
2. Disconnect the transfer pump connector.
3. Turn the ignition switch ON and verify that the voltage at
the fuel pump control unit terminat D (LA')
is approx. t2V.
Replacement
1. Move the driver's seat backward.
2.
Remove
the bolts and remove the fuel pump control unit
and bracket as an assembly.
3. Remove the fuel pump control
unit
from the bracket.
4. Install in the
reverse
order
of removal.
F2--53