Ground JAGUAR X308 1998 2.G Workshop Manual

Measure t
he resistance between relay socket pin 5 and
ground BT020L.
1
I s
the resistance < 10OHM?
Yes GO to B6
No GO to B10
B6: CHECK FUEL
PUMP DRAWN CURRENT
•
NOTE
: With EM013 disconnected this test will cause the pump to operate continuously. Do not exceed 10 sec running.
•

NOTE: Do not replace relay.

Us
ing a link lead, connect EM013/009 to ground BT020L.
1
W
i
th ignition energized, check for battery voltage at relay

socket between pins 2 and 1.
2
B+?
Yes
GO t
o B10
No GO to B8
B8: CH
ECK RELAY COIL CIRCUIT CONTINUITY

W
ith EM013 disconnected, measure the resistance
between EM013/009 and relay socket pin 1
1
I
s the resistance < 0.5 OHM?
Yes GO to B9
No Inspect connectors EM013, EM051/008, LS003/21,
BT004/009 and BT010/005 for corrosion, damage, bent or
pushed back pins and repair as required. Test the system
for normal operation
B9: CHECK
ECM GROUND CONTINUITY

Wi
th EM014 disconnected, measure the resistance
between EM014/010 and ground EM016L.
1
I s
the resistance < 0.5 OHM?
Yes STOP, renew the relay and test the system for normal
operation.
No Inspect harness / connectors EM014, splice EMS37 and
ground EM016L for corrosion, damage, bent or pushed
back pins. Repair as requir ed and test the system for
normal operation.
B10: CHECK FU EL
PUMP CONTINUITY

Wi
th BT009 disconnected, measure the resistance across
the fuel pump connectors reference BT009/003 and
BT009/004.
1
I
s the resistance < 5 OHM?
Yes GO to B11
No Renew the fuel pump and te st the system for normal
operation.
B11: CHECK FU
EL PUMP GROUND CONTINUITY

With
BT009 disconnected, measure the resistance
between BT009/003 and ground BT020L.
1
I s
the resistance < 0.5 OHM?
Yes GO to B12
No Inspect harness / connector BT009, splice BTS021 and
ground BT020L for corrosion, damage, bent or pushed
back pins. Repair as requir ed and test the system for
normal operation.
B1 2
: CHECK CIRCUIT CONTINUITY

Wi
th BT009 disconnected an
d relay 1 removed, measure
the resistance between BT009/004 and relay socket pin
5.
1
I
s the resistance < 0.5 OHM?
Yes GO to B13
No Inspect harness / connector BT 009, fuse holder F15 and
BT012/002 for corrosion, damage, bent or pushed back
pins. Repair as required and test the system for normal
operation.
B13: CHECK HARNESS SHO
RT TO GROUND

Wi
th EM013 and BT009 disconnected, measure the
insulation resistance between EM013/009 and ground
BT020L.
1
I s
the resistance > 10M OHM?
Yes Do not replace relay or reconnect connectors
GO to B14
No Inspect harness / connec tors EM013, EM051/008,
LS003/021, BT004/009 and BT010/005 for corrosion,
damage, bent or pushed back pins. Repair as required
and test the system for normal operation.
B1 4
: CHECK CORE TO CORE INSULATION

Conne
ct the scan tool
1
Have the DTC(s) and fr

eeze
frame data been recorded?
Yes GO to C2
C2
: CHECK CONTINUITY FUEL SENSOR
W

ith connectors BT014 and BT015 disconnected check
the resistance between the fuel level sensor pins.
1
Is
the resistance >70 and <1000 OHM?
Yes GO to C3
No Renew the level sensor and test the system for normal
operation.
C3
: CHECK FOR SHORT TO GROUND

W
ith connectors FC025, FC024, BT014 and BT015
disconnected measure the insulation resistance between
FC025/013 and FC025/014.
1
I
s the resistance > 10 MOHM?
Yes GO to C5
No Inspect harness / connectors FC025, FC024, FC001,
BT004, BT014 and BT015 for corrosion, damage, bent or
pushed back pins. Repair as required and test the system
for normal operation.
C5
: CHECK GROUND CONTINUITY