toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Main Relay (Computer/Fuel System) > < Fuel Pump Relay|Locations
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Fuel Pump Relay: Testing and Inspection

A. Inspect relay continuity.

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Using an ohmmeter, check that there is continuity between terminals ST and E1.

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If there is no continuity, replace the relay.

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Check that there is continuity between terminals +B and FC.

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If there is no continuity, replace the relay.

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Check that there is no continuity between terminals +B and FP.

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If there is continuity, replace the relay.

B. Inspect relay operation.

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Apply battery positive voltage across terminals ST and E1.

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Using an ohmmeter, check that there is continuity between terminals +B and FP.

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If there is no continuity, replace the relay.

Main Relay (Computer/Fuel System) > < Fuel Pump Relay|Locations