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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-30-2003, 02:02 AM   #21
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i didnt have time to look at it but i dunno when i gonna?
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Old 09-30-2003, 02:13 AM   #22
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Keep us posted. Yours would be the first HUD failure I've heard of here.
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Old 10-22-2003, 12:08 PM   #23
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Default HUD failure

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Originally Posted by willwren
Keep us posted. Yours would be the first HUD failure I've heard of here.
... would hate to be the first on this one .... 1st time poster

Have a '94 SSEi with 195,000km (Canadian eh?) and the HUD doesn't come up at all (checked dimmer & positional sliders). I read the previous posts and checked fuse 5A but it looks fine. In my previous check I needed to replace 9E (rear window defog) which was blown, but it didn't help.

I came across a HUD write-up that shows a HUD wiring diagram (courtesy of GM) that shows the fuse that protects the system. The diagram shows a wire from the HUD control module and a label with Fuse 20, 10A and an arrow to IGN.

Another diagram shows a symptom flow chart from the Bonneville '94 service manual to aid diagnosis which makes me think they are related.

I'm not capable of doing the probes of the HUD control module it suggests, but was wondering if there is another fuse either under dash or even in-line that I could check before going to the shop.

Any thoughts appreciated. Thanks.
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Old 10-22-2003, 12:32 PM   #24
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i noticed that sometimes when i watch the hud...it will flash from like 55 and just flash 80 for a second and then back to 55...
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Old 10-22-2003, 03:07 PM   #25
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Quote:
Originally Posted by CraZyDriVer868
i noticed that sometimes when i watch the hud...it will flash from like 55 and just flash 80 for a second and then back to 55...
That sounds like something to do with your MPH/KPH selector button or its connector; it sounds like it'* flipping between miles and kilometers on your speed display.
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Old 10-23-2003, 01:22 AM   #26
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Default Re: HUD failure

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Originally Posted by GMan
Quote:
Originally Posted by willwren
Keep us posted. Yours would be the first HUD failure I've heard of here.
... would hate to be the first on this one .... 1st time poster

Have a '94 SSEi with 195,000km (Canadian eh?) and the HUD doesn't come up at all (checked dimmer & positional sliders). I read the previous posts and checked fuse 5A but it looks fine. In my previous check I needed to replace 9E (rear window defog) which was blown, but it didn't help.

I came across a HUD write-up that shows a HUD wiring diagram (courtesy of GM) that shows the fuse that protects the system. The diagram shows a wire from the HUD control module and a label with Fuse 20, 10A and an arrow to IGN.

Another diagram shows a symptom flow chart from the Bonneville '94 service manual to aid diagnosis which makes me think they are related.

I'm not capable of doing the probes of the HUD control module it suggests, but was wondering if there is another fuse either under dash or even in-line that I could check before going to the shop.

Any thoughts appreciated. Thanks.
No, 5A is the right fuse. You may be reading a service manual for a different year. Time to do some wire-probing.
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Old 10-23-2003, 10:35 AM   #27
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Default Re: HUD failure

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Originally Posted by fuddyduddy121
No, 5A is the right fuse. You may be reading a service manual for a different year. Time to do some wire-probing.
Thanks. FYI, here'* a link to that general HUD write-up (pdf file) http://www.i-car.com/pdf/program_sup...3/novdec93.pdf

The HUD actually came up yesterday for an instant, then went away. Later that evening I noticed it fade in and out a couple of times which makes me think there'* a loose connection.
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Old 10-23-2003, 10:02 PM   #28
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Have you tried fiddling with the HUD dimmer control?
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Old 10-24-2003, 10:25 AM   #29
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Quote:
Originally Posted by fuddyduddy121
Have you tried fiddling with the HUD dimmer control?
Yeah ... both the dimmer and the positional slider. I'll do some poking around over the weekend. If I come up with anything will let you know. Thanks for your efforts.
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