Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1989 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE
Fuel Pump Quick Test
- Turn ignition on, with engine off. On all models, place jumper wire across "+B" and "FP" terminals of engine check connector in engine compartment. See Fig 1. See ENGINE CHECK CONNECTOR LOCATIONΒ table.ENGINE CHECK CONNECTOR LOCATION
Model (1) Location Cressida Left shock tower Land Cruiser On firewall, under wiper motor Supra Front of left shock tower (1) Label on inside of engine check connector cover has check connector pin identification. All "FP" and "B" pins will be in same location. - On all models, listen for fuel pump running sound. Feel for pressure in fuel line between filter and fuel rail. Turn ignition off. Remove jumper wire. If fuel pump sound was present and fuel hose showed pressure, go to FUEL SYSTEM PRESSURE TEST.
- If no pressure or fuel pump sound was present on all models, connect a jumper wire from battery source to "FP" terminal of engine check connector.NOTE: All models use in-tank fuel pump. Fuel pump contains internal relief valve and check valve.
- If fuel pump ran after battery source was connected to "FP" terminal in step 3), check EFI main relay and related wiring. Also check "EFI" and "IGN" ("AM2" on MR2) fuses. See FUEL PUMP CONTROL CIRCUIT in this article. For more information on wiring, see WIRING DIAGRAMS in this section.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
