LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Electrical Problem, please help!

Old Jan 24, 2005 | 05:37 PM
  #1  
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Electrical Problem, please help!

I have had a problem for awhile that I am just finally almost getting traced down.. What I need is for somebody with an LT1, preferably a 97 but other years may work also, to do a little test for me. If your blinkers currently work, please take the "Actuators" fuse out of the fuse block in the engine bay, turn the key to "ON" and test if your blinkers work. Then replace the fuse. Please report back if the blinkers work or do not. Thank you VERY much for anybody who does this!!
Old Jan 24, 2005 | 10:11 PM
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Re: Electrical Problem, please help!

ttt
Old Jan 25, 2005 | 05:01 AM
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Re: Electrical Problem, please help!

I saw you weren't getting an answer and thought I could help. I don't have a 97 at my disposal unless I make a call, but I do have the schematics. The actuator fuse (#2 15AMP) in the underhood fuse block has no connection to the turn, hazard or stop lights. Meaning, if you remove the actuator fuse and turn KOEO, the blinkers will (should) still work. Unless of course, you have some other problem????

FYI, the fuse you are asking about, only powers the EVAP purge solenoid and the EGR valve in a V8.

I noticed back in may you posted about some wiring problems with your fusible link and several DTC's regarding the EVAP and EGR. I think you found the connection to those problems at least. However, I see several posts by you since then and nothing refers to a problem until now.

Last edited by slopokrodrigez; Jan 25, 2005 at 05:09 AM.
Old Jan 25, 2005 | 09:47 AM
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Re: Electrical Problem, please help!

Yeah I just kind of gave up on the problem for awhile. I got a Chilton book for xmas and so I looked at the wiring diagrams. I found out that the ABS IGN, ABS something, and Actuators fuses were all not receiving power when the key is turned to run. This is the only thing I have been able to find out and I barely ever have time to work on my car because I am at college and it is at home. I'm just hoping somehow that the turn signal issue is somehow related.. Anyways, thanks for the reply!
Old Jan 26, 2005 | 09:59 PM
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Re: Electrical Problem, please help!

Some more information. This is a text file which I have been keeping to help me find the source of the problem. This is all the information I have collected:


Error Codes:
P0403 (EGR Circuit)
P0400 (EGR Flow)
P0433 (EVAP Purge Control Valve Circuit)
P0441 (EVAP Purge Flow)

Stuff that doesn't work:
ABS
Engine Fans
Blinkers (Hazards do work however)
Reverse lights
Heat/AC/Fan/Defroster
Headlights do not turn on automatically at night, only foglights

Stuff I have tested:
Replaced 3 fusible links
Replaced ABS Relay
Tested all fuses under the hood, 3 of them receive ground and not power (ABS IGN, ABS Valve, Actuators)

The Actuators fuse controls: DRL Module, Headlamp Switch, Cooling Fan Relay, EGR, EVAP.

I forget where I got the information of what the actuators fuse controls, but if it in fact does also control the DRL module and the headlamp switch, maybe this does tie into my blinkers problem? Where did you get the information that it only powers the EVAP purge and EGR valve? Thanks!
Old Jan 27, 2005 | 04:48 AM
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Re: Electrical Problem, please help!

Originally Posted by slopokrodrigez
The actuator fuse (#2 15AMP) in the underhood fuse block has no connection to the turn, hazard or stop lights.

The actuator fuse (#2 15AMP) only powers the EVAP purge solenoid and the EGR valve in a V8.
Only the EVAP and EGR

So you are also saying that there is no voltage at the fuse holder for those fuses?

Last edited by slopokrodrigez; Jan 27, 2005 at 04:51 AM.
Old Jan 27, 2005 | 06:04 PM
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Re: Electrical Problem, please help!

Originally Posted by slopokrodrigez
Only the EVAP and EGR

So you are also saying that there is no voltage at the fuse holder for those fuses?
Yes, no voltage, even when key is in the ON position. I think the feed line to those fuses is probably the same wire, and it must have shorted out somehow. Being at college, car at home, it's hard to troubleshoot.
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