no SES light
Thread Starter
Member
Joined: Jun 2010
Posts: 371
Likes: 0
From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
no SES light
my SES does not illuminate at all. it's supposed to go through it's self diagnostic as i turn the key to the "on" position and it doesn't. i also pluged in the scanner to check codes on the car and the SES never came on or flashed or anything.
also my fuel pump doesn't work. would those be related? is my computer shot?
also my fuel pump doesn't work. would those be related? is my computer shot?
Member
iTrader: (1)
Joined: Sep 2009
Posts: 169
Likes: 0
From: ft.lauderdale Florida
Car: 1989 IROC Z
Engine: 5.0 tpi. stock [for now]
Transmission: T5
Re: no SES light
some people take the bulb out so it dosent light up when theyre trying to sell it, its happened to me, and a few other people on here. pull out your gauge cluster and check if there is a bulb behind the SES part. it also might just be a blown bulb.
TGO Supporter
Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: no SES light
They both share a 20A fuse in a weatherpak holder right by the battery (usually on the upper frame rail). Make sure it is not blown.
Thread Starter
Member
Joined: Jun 2010
Posts: 371
Likes: 0
From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
Re: no SES light
and no the car doesn't run. only off of intake cleaner lol..
are you talking about the relays that are at the back of the engine bay?
Thread Starter
Member
Joined: Jun 2010
Posts: 371
Likes: 0
From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
Re: no SES light
well, i don't recall having a fuse anywhere near my battery....i've never seen one there anyway. i'll look next time i'm under the hood.
Trending Topics
Re: no SES light
On your 1989, that fuse will be on the left/driver's side near the battery.
The fuel pump prime is controlled by the ECM. Given that you don't hear the fuel pump and the Service Engine Soon light does not illuminate, it sounds like a circuit issue with the ECM. ECMs rarely go bad. Unless, of course, you have seperate issues (burned out Service Engine Soon light and a bad fuel pump).
The fuel pump prime is controlled by the ECM. Given that you don't hear the fuel pump and the Service Engine Soon light does not illuminate, it sounds like a circuit issue with the ECM. ECMs rarely go bad. Unless, of course, you have seperate issues (burned out Service Engine Soon light and a bad fuel pump).
Thread Starter
Member
Joined: Jun 2010
Posts: 371
Likes: 0
From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
Re: no SES light
i'll look again, but i searched all around near the battery. i didn't see a fuse anywhere near it. the wiring of my car has been messed with so that could be some of the issues. but i'll look again. is it in a hard to find spot, or out in the open?
Thread Starter
Member
Joined: Jun 2010
Posts: 371
Likes: 0
From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
Re: no SES light
so i looked for that fuse today, everywhere near the battery, and i didn't see anything like that. maybe it's in the fender? idk, but it's not there.
Re: no SES light
Look at the end of the positive battery cable and follow it partially away from the battery. There should be a splice. The fuse should be in the nearby area. The fuse may not look like a fuse to you as it's an enclosed fuse (if hasn't been tampered with) and I believe (also if not previously tampered with) it should be mounted in front of the battery.
Thread Starter
Member
Joined: Jun 2010
Posts: 371
Likes: 0
From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
Re: no SES light
Look at the end of the positive battery cable and follow it partially away from the battery. There should be a splice. The fuse should be in the nearby area. The fuse may not look like a fuse to you as it's an enclosed fuse (if hasn't been tampered with) and I believe (also if not previously tampered with) it should be mounted in front of the battery.
Thread
Thread Starter
Forum
Replies
Last Post
MikkoV
TPI
2
Sep 9, 2015 04:25 PM
florida_gators
Exterior Parts Wanted
1
Sep 7, 2015 07:19 PM






