FUEL FILTER INSPECTION
PROCEDURE
INSPECT FUEL FILTER ASSEMBLY (w/ Fuel Heater Relay)
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*a
Float at upper end position
*b
Float at lower end position
Inspect the level warning switch.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
1 - 2
Float at upper end position
Below 1 Ω
Float at lower end position
10 kΩ or higher
If the result is not as specified, replace the fuel filter assembly.
Inspect the fuel heater.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
1 - 2
20°C (68°F)
0.1 to 1 Ω
If the result is not as specified, replace the fuel filter assembly.
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