lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Circuit Opening Relay|Page 1267 > < Fuel Pump Relay|Page 1264
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Fuel Pump Relay: Testing and Inspection
Circuit Opening Relay

Circuit Opening Relay Inspection

Checking Relay Continuity

- Remove relay.
- Check for continuity between terminal ST and E1.

Desired - Continuity

- Check for continuity between terminal IG and FC.

Desired - Continuity

- Check for continuity between terminal B and FP.

Desired - No continuity

- Replace relay if desired results are not achieved.

Circuit Opening Relay Inspection

Checking Relay Operation

- Apply battery voltage across relay terminals ST and E1.
- Check for continuity between terminal B and FP.

Desired - Continuity

Circuit Opening Relay Inspection

- Apply battery voltage across relay terminals IG and FC.
- Check for continuity between terminal B and FP.

Circuit Opening Relay|Page 1267 > < Fuel Pump Relay|Page 1264