HELP! 240sx doesn't start no power

[180sx+silvia=sileighty]

Hello everyone i have a 1991 240sx. It has been running good since i bought it more than a year ago. It is a manual. I don't have to press in the clutch to start the car. and the car also has a push start button. Currently the car does not start. The car has no power to the ignition, so the cluster does not light up to start the car. The ecu doesn't turn on so i can't check the code. The pw window and turn signal don't work either. but the radio and the headlights, and interior lights work.

I check the inside fuse and they are good. Battery is good and the terminal and connections are good, alternator is new. Starter works when i press my push start button, it cranks. The ignition seems to work because i did a continuity test with a rig light bulb to check. I searched the forum and i think it may be one of the relays in the engine bay or the relay next to the battery. But is there a way to test these relays. I also read about the tcu being a problem. I really don't know why my car won't start. last week i turned on the car and after 3 minutes the car died. Been trying to figure it out.

Im really stumped now and i need yours guys help. It's weird, the cars has been siting for almost 2 weeks. and im about to start school soon. it is my dd. please guide me to get it running again. thank you.

[480sx]

I would check out those relays. I really have no specific advice for you other than to check the FSM and figure out what relay gives power to your ECU. Thats your main problem it seems. Double check your ignition too. I would really lean twords it being an ignition problem.

[180sx+silvia=sileighty]

yea i checked the ignition and its sending out power. let me check the relays again. im really stumped.

[180sx+silvia=sileighty]

is there a way to test if the relay is working? i switch the fuel pump relay with the egi and it still doesn't send power to the ecu. unless both relays are shot. also is there a way to rig up a relay to test if that is the problem too?

Modified by 180sx+silvia=sileighty at 6:19 PM 9/23/2008
Modified by 180sx+silvia=sileighty at 2:04 PM 9/24/2008

[180sx+silvia=sileighty]

can some one tell me what those relay inside the kickpanel are? I think i may have over looked them. thanks

[DriftToy]

Have you checked your alternator fuse? Its in the engine bay on the passenger side.

[180sx+silvia=sileighty]

yea it is good, the alternator fuse.

[180sx+silvia=sileighty]

so changed out all the relays, fuse and the tcu. The car has power, but the turn signals still dont work, nor do the pw windows. The ecu doesnt turn on. Idk there might be a short or something. its odd, i dont know where to start.

[goodsx95]

Have you check the main fusible link? It's in with the relays.

[mmaxeyjr]

GROUNDING!?!! make sure u have good ground wires. add more or new ones to replace the old.

[180sx+silvia=sileighty]

thank you everyone. It turned out to be the alarm. There was short in one of the wires. It was blocking the ignition signal to everything. Now its started up and everything is fine.