Em013 JAGUAR X308 1998 2.G Workshop Manual

Ig
nition switch to position 0
1
D
i
sconnect EM013
Inside E
C
M housing
2
Me
asure
the resistance between EM013/010 and relay
socket pin 2.
3
I s
the resistance < 0.5 OHM?
Yes STOP, renew the relay and test the system for normal
operation.
No Inspect harness / connector EM013 and relay socket for
corrosion, damage, bent or pushed back pins. Repair as
required and test the syst em for normal operation.
D8:
END
Perform
a
ppropriate service drive cycle and check for the
presence of DTC.
1
Has th
e fault code cleared?
Yes STOP
No Contact Jaguar Service

Wi
th EM013 disconnected, check for battery voltage
between EM013/001 and ground BT020L.
1
B+ ?
Yes
GO t
o A13
No GO to A4
A4: CHECK
SUPPLY VOLTAGE
•

NOTE: Do not replace relay.

Measure t
he resistance between relay socket pin 5 and
ground BT020L.
1
I s
the resistance < 10OHM?
Yes GO to A6
No GO to A10
A6: 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 EM013/001 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 A10
No GO to A8
A8: CH
ECK RELAY COIL
CIRCUIT CONTINUITY

W
ith EM013 disconnected, measure the resistance
between EM013/001 and relay socket pin 1.
1
I
s the resistance < 0.5 OHM?
Yes GO to A9
No Inspect harness / connec tors EM013, EM003/005,
FC001/42, BT004/019 and BT011/010 for corrosion,
damage, bent or pushed back pins. Repair as required
and test the system for normal operation.
A9: CHECK
ECM GROUND CONTINUITY

Wi
th EM013 and BT009 disconnected, measure the
insulation resistance between EM013/001 and ground
BT020L.
1
Is
the resistance > 10M OHM?
Yes Do not replace relay or reconnect connectors.
GO to A14
No Inspect harness / connec tors EM013, EM003/005,
FC001/042, BT004/019 and BT011/010 for corrosion,
damage, bent or pushed back pins. Repair as required
and test the system for normal operation.
A1 4
: CHECK CORE TO CORE INSULATION

W
ith conditions as A13, measure the insulation resistance

between EM013/001 and relay socket pin 5.
1
I
s the resistance > 10M OHM?
Yes GO to A16
No Inspect harness / connec tors EM013, EM003/005,
FC001/042, BT004/019, BT011/001, BT009/002 and
BT011/010 for corrosion, damage, bent or pushed back
pins. Repair as required and test the system for normal
operation.
A1
5: CHECK CORE TO CORE INSULATION

Pinpoint test B:
P1646
W
i
th conditions as in A14, measure the insulation
resistance between EM013/001 and BT009/001.
1
I s
the resistance > 10M OHM?
Yes Reconnect all plugs and replace relay 4.
GO to A16
No
A 16:
END
Perform
a
ppropriate service drive cycle and check for the
presence of DTC.
1
Has th
e fault code cleared?
Yes STOP
No Contact Ja
guar Serv ice
PINPOINT TEST B : B: P1646
TE
ST CONDITIONS
D
E
TAILS/RESULTS/ACTIONS
B1
: RETRI
EVE DTCS
•
NOTE
: Battery and or ECM disconnection prior to scanning wi
ll erase all data, ensure that the correct DTC is present.

Wi
th EM013 disconnected, check for battery voltage
between EM013/009 and ground BT020L.
1
B+ ?
Yes
GO t
o B13
No GO to B4
B4: CHECK
SUPPLY VOLTAGE
•

NOTE: Do not replace relay.

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.