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

1. REMOVE CIRCUIT OPENING RELAY.
2. INSPECT CIRCUIT OPENING RELAY.

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

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

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

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If continuity is not as specified, replace the relay.

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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 operation is not as specified, replace the relay.

3. REINSTALL CIRCUIT OPENING RELAY.

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