SEDIMENTOR SWITCH INSPECTION [WL-C, WE-C]

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Continuity Inspection

Note

•  Perform the following test only when directed.

1.  Disconnect the negative battery cable.

2.  Drain fuel from the fuel filter. (See SEDIMENTOR WATER DRAINING [WL-C, WE-C].)

3.  Remove the sedimentor switch.

4.  Inspect continuity of the sedimentor switch by using an ohmmeter.

Float	Continuity
Up	Yes
Down	No

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5.  If not as specified, replace the sedimentor switch. If as specified, inspect following:

Open circuit

•  Ground circuit (Sedimentor switch connector terminal B and body ground)

•  Power circuit (Sedimentor switch connector terminal A and engine switch connector terminal C)

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Short circuit

•  Ground circuit (Sedimentor switch connector terminal B and body ground to power circuit)

•  Power circuit (Sedimentor switch connector terminal A and engine switch connector terminal C to ground)

6.  Repair or replace faulty areas.

7.  Install the sedimentor switch.

8.  Reconnect the negative battery cable.

9.  Bleed air from the fuel filter.