Question about 1993 Lexus Ls 400

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I have a 93 Ls 400 Lexus .the fuel pump has no power coming to the pump but if I connect to the battery it works . All fuses and relays are good .what do you think it is?

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Fuel Pump

I have a 92 lexus and they had to take my whole backseat out and drop the gas tank to get to the fuel pump.The fuel pump is down by the gas tank

Posted on Mar 04, 2009

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SOURCE: need manual

the drivers seat wont recline properly . it reclines on 1 side

Posted on Mar 24, 2009

mecanica03
  • 918 Answers

SOURCE: 1990 Lexus ls 400 transmission

yes, no problem

Posted on Apr 13, 2009

  • 199 Answers

SOURCE: I blew some fuses in my 1998 Lexus ls 400, i

check under the hood for more fuses.

Posted on Jun 22, 2009

  • 1348 Answers

SOURCE: Fuse Box ( cover) diagram for a 95 Lexus LS 400 is missing.

check the wiring harness beside the hinge that moves when you close the trunk.i have seen the wiring get pinched and the ground gets broken. the tail lights have separate left and right side fuses.get a test light,and with the ignition in the on position,there should be power on both sides of all the fuses.the atc type have little test pins on them.ground the test light and put the tip on the fuse.if there is power,the light will come on. if a fuse does not light up the light on both sides,it is open.since the fuses are see thru,it is apparent if it is blown as the metal inside will be burnt.

Posted on Oct 23, 2009

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1 Answer

Where is the fuel pump relay switch on a 1994 lexus ls


The fuel pump relay should be in the relay box under the drivers dash left of the steering column

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To answer your question specifically it would be no. There
is no inertia switch that feeds the fuel pump that can be turned off or reset . The engine control computer turns on a series of two different relays to control power to the fuel pump. When in the start position the circuit opening relay and the fuel pump relay or both energize causing the fuel pump to run at full pressure or fast speed. From there the engine control computer determines which demand is on the fuel pump and either turns off the fuel pump relay and leaves
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1 Answer

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First, please post your question only once.
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Read the last post:
http://us.lexusownersclub.com/forums/index.php?showtopic=66180

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4 Answers

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