My 98 240sx won't start. It is stock (KA) except for intake, headers and a short shifter.
When I turn the key none of the warning lights (SES, Airbag, brake, etc.) come on, BUT all of the accessories and the radio come on. I thought that it was the ignition switch, so I replaced that, but no luck. So, what else would cause the warning lights not to come on with the ignition in the start position?
Car won't start
-
mr2man07
- Posts: 50
- Joined: Sun Jul 22, 2007 1:20 pm
- Car: 91 MR2 Turbo, 89 and 90 nissan 240sx fastbacks
Re: Car won't start (PACO)
try jumpstarting battery. even though usually the lights come on, it could be a start.
check your fuses too, i dont know what all would happen if the ecu fuse happened to blow or break loose, but it could cause these problems.
check your fuses too, i dont know what all would happen if the ecu fuse happened to blow or break loose, but it could cause these problems.
Re: Car won't start (mr2man07)
Ive tried jumpstarting before, with no luck, even got a brand new battery.mr2man07 wrote:try jumpstarting battery. even though usually the lights come on, it could be a start.
check your fuses too, i dont know what all would happen if the ecu fuse happened to blow or break loose, but it could cause these problems.
All of the fuses tested good. I couldnt find the ECU fuse, though?
Tomorrow, im gonna try to test the ECM terminals as outlined in the FSM and see if I cannot find anything there.
It seems like the ECU isnt turning on, and I cant even test it with my OBD 2 tester.
Re: Car won't start (PACO)
Alright, I just tested all of the ECM terminal wires that I could with only the ignition switch 'on', and the car not running.
Termnals 56 and 61 (B/W) - Power Supply for ECM does not have powerBUT Terminal 70 (R) - Power Supply (Back-up) does have 12 volts.
Im wondering if it could be a fuse (I cannot find a fuse that is labeled ECM, or some variation) or if the ECCS Relay could be bad, but I dont know how to test it.
Termnals 56 and 61 (B/W) - Power Supply for ECM does not have powerBUT Terminal 70 (R) - Power Supply (Back-up) does have 12 volts.
Im wondering if it could be a fuse (I cannot find a fuse that is labeled ECM, or some variation) or if the ECCS Relay could be bad, but I dont know how to test it.
Re: Car won't start (PACO)
I just tried to fool with it again, and found out that my alarm is to blame.
When Tweeter installed the alarm they spliced the Black/Red wire (from ignition switch) to power the alarm. The alarm works fine, but power isn't being sent back to the Black/Red wire to go to the ECU. I jumped the original wire with a fused wire and it started fine. Now I gotta find out if something is wrong with my alarm, or if I gotta live without it.
When Tweeter installed the alarm they spliced the Black/Red wire (from ignition switch) to power the alarm. The alarm works fine, but power isn't being sent back to the Black/Red wire to go to the ECU. I jumped the original wire with a fused wire and it started fine. Now I gotta find out if something is wrong with my alarm, or if I gotta live without it.