Page 1713 of 2490
Conne
ct the scan tool
1
Have the DTC(s) and fr
eeze
frame data been recorded?
Yes GO to B2
B2
: CHECK FUSE
•
NOTE: See further steps for poss
ible cause of fuse failure.
Chec
k fuse 15 integrity (located in the trunk)
1
OK
?
Yes GO to B3
No Renew fuse and test the syst em for normal operation.
B3:
CHECK SHORT TO SUPPLY
Page 1714 of 2490
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.
Page 1715 of 2490
W
ith relay 1 removed, check for battery voltage at relay
socket between pins 3 and 5.
1
B+
Yes GO to B5
No GO to B11
B5
: CHECK CIRCUIT CONTINUITY
•
NOTE: Do not replace relay.
Page 1716 of 2490
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.
Page 1717 of 2490
Wi
th the ignition energized, measure the current drawn
between relay socket pins 3 and 5.
1
Is
the current between 2.5 and 9 A?
Yes GO to B7
No GO to B10
B7
: CHECK B+ AT RELAY COIL
•
NOTE: Do not replace relay
Page 1718 of 2490
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
Page 1719 of 2490
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
Page 1720 of 2490
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