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TK 61552-2-MM-EN
69
Figure 39.
Fuel Solenoid Connector Pin Identification
1.
Red (8D)
2.
White (8DP)
3.
Black (CH)
4. Re-connect the fuel solenoid to the wire harness but do not reinstall on the engine. Leave the
fuel solenoid hanging from the wire harness so that it is in sight.
5. Connect an amp clamp on the white wire at the solenoid OR the wire labeled “8DP” on the
other side of the Deutsch connector (if it is more accessible there). If your meter is equipped,
put it in “Inrush” or “Min/Max” mode so that it records the current measured during the time
that the pull coil is energized.
6. Use the microprocessor keypad to enter the Interface Board Test Mode. Refer to the
appropriate Microprocessor Diagnostic Manual for specific information about the Interface
Board Test Mode.
7. Check the pull-in coil current.
a. Energize the run relay with the Interface Board Test Mode. Verify the pull-in coil
measurement is recorded during the first two seconds the run relay is energized.
b. IIm
mp
po
orrtta
an
ntt:: C
Ch
he
ecckk tth
ha
att tth
he
e p
pu
ullll--iin
n cco
oiill a
am
mp
pe
erra
ag
ge
e ((o
on
n 8
8D
DP
P)) d
drro
op
pss o
offff a
afftte
err 2
2 sse
ecco
on
nd
dss..
IIff tth
hiiss cco
oiill cco
on
nttiin
nu
ue
ess d
drra
aw
wiin
ng
g ccu
urrrre
en
ntt ffo
orr m
mo
orre
e tth
ha
an
n 3
3 sse
ecco
on
nd
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he
erre
e iiss a
a rre
ella
ay
y,,
cco
on
nttrro
olllle
err,, o
orr w
wiirriin
ng
g iissssu
ue
e.. C
Ch
he
ecckk u
un
niitt rre
ep
pa
aiirr h
hiisstto
orry
y ffo
orr ssiim
miilla
arr iissssu
ue
ess..
c. The current through the pull-in coil should be 26 to 32 amps at 76 F (24 C).
N
No
otte
e:: The current specifications above are for measurement at 76 F (24 C). If it is not
possible to measure at room temperature, use the following table as a guide for the
expected current:
Temperature
Pull-In Coil Current
Low End
High End
-25 F
-32 C
31.8 Amps
38.9 Amps
-10 F
-23 C
30.8 Amps
37.7 Amps
0 F
-18 C
30.4 Amps
37.2 Amps
25 F
-4 C
28.7 Amps
35.0 Amps
50 F
10 C
27.2 Amps
33.2 Amps
76 F
24 C
26.0 Amps
31.8 Amps
100 F
38 C
24.9 Amps
30.4 Amps
125 F
52 C
23.3 Amps
28.4 Amps
150 F
66 C
23.3 Amps
28.5 Amps
d. If the current is out of specifications, examine the circuit (fuses, relays, wires, etc.) for
faults. If the circuit is OK, proceed to “Fuel Solenoid Replacement” (below).
e. If the current is within specifications, proceed to step 8 for a visual check.