Section 04 FUEL SYSTEM
Subsection 02 (FUEL TANK AND FUEL PUMP)
If voltage is out of specifications, test the
FUEL
LEVEL SENSOR RESISTANCE AT INFORMATION
CENTER
as described in this subsection.
Remove diagnostic harness and reconnect con-
nector.
Testing Fuel Level Sensor Resistance
at Information Center
1. Disconnect i nformation center (multifunction
gauge) connector. Refer to
INFORMATION
CENTER
subsection.
smr2009-042-002_a
1. Gauge connector
2. Pull out t
o unlock connector
2. Use the FLUKE 115 MULTIMETER (P/N 529 035
868)
and select .
3. Alterna
tely drain then fill fuel tank and measure
the sens
or resistance between pins 19 and 20
as follo
ws.
RESISTANCE ( ) FLOAT HEIGHT
4.8 ± 2.2 Maximum (FULL)
47.8 ± 2.2 Middle (HALF)
89.8 ± 2.2 Minimum (EMPTY)
A. Float height
NOTE: If fuel tank is not full or empty, the resis-
tance value will be proportional to the fuel level
(somewhere in-between).
If readings are as per specifications, the fuel level
circuit and sensor are good. If fuel level does not
work in information center, try a new one.
If readings are out of specifications, test the
FUEL
LEVEL SENSOR RESISTANCE AT FUEL PUMP
.
If an open circuit is measured, carry out a conti-
nuity test of the wiring from the information cen-
ter to the 20-pin steering connector, and from the
20-pin steering connector to the fuel pump mod-
ule c onnector. Refer to
WIRING DIAGRAM
.
If the wiring is good, test
FUEL LEVEL SENSOR
RESISTANCE AT FUEL PUMP
.
4. Reconnect information center (multifunction
gauge) connector.
Testing Fuel Level Sensor Resistance
at Fuel Pump
1. Disconnect fuel pump module connector.
smr2012-027-010_c
FUEL PUM
P MODULE
1. Fuel pump mo dule connector
2. Alternately drain then fill fuel tank and measure
the sensor resistance between pins "C" and "D"
of the fuel pump connector. See table in
TEST-
ING FUEL LEVEL SENSOR RESISTANCE AT IN-
FORMATION CENTER
.
219100893-021 99
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