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C5 Ignition Switch Repair

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Old 08-14-2017, 09:12 PM   #381
chaplainskip
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Hi Bill,

Is there a wire/fuse under the dash that has constant power (and doesn't 'time out' after 12 minutes)?

I am installing a show LED system that has an on/off switch.
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Old 08-15-2017, 07:44 PM   #382
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C5s from 97-2003 have a AUX pig tail that has a ground wire, switched power wire (yes it times out) and a BATTERY BUSS constant power wire. (does NOT time out) Its the proper way to tap into C5 Power. If you have a 2004, you have to purchase a FUSE TAP and find a fuse that is powered all the time.

It is above and to the LEFT of the BCM next to the side of the HVAC Air Box. If it never has been used, the 6 inch pigtail ends will be terminated in silver duct tape.

Both power wires are 20 amp fused

Bill
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Old 08-28-2017, 08:06 PM   #383
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Still a very valid thread. Just repaired my ignition switch. Thanks OP for the info. The switch work went fairly easily. I am concurrently trying to fix the DIC which will not allow selection between fuel, gages, trip, options, e/m, and reset. Bought a used switch off eBay, but still no functions. But that is another thread.
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Old 09-23-2017, 04:21 PM   #384
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Originally Posted by Bill Curlee View Post
C5s from 97-2003 have a AUX pig tail that has a ground wire, switched power wire (yes it times out) and a BATTERY BUSS constant power wire. (does NOT time out) Its the proper way to tap into C5 Power. If you have a 2004, you have to purchase a FUSE TAP and find a fuse that is powered all the time.

It is above and to the LEFT of the BCM next to the side of the HVAC Air Box. If it never has been used, the 6 inch pigtail ends will be terminated in silver duct tape.

Both power wires are 20 amp fused

Bill
Finally had my ignition switch replaced today. GONE are the electrical ghosts that caused; intermittent "check ABS" and "check stabilization" idiot lights, intermittent turns signals and cruise control not working. AND, after resetting diagnostic HVAC codes, the right side actuator door started working!

Thanks, Bill Curlee
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Old 01-11-2018, 07:44 PM   #385
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Hi Bill,

I have a 2003 Anv. convertible.

I pulled my ignition switch and cleaned the black deposits off the switch contacts as you described (Thank You for all your posts!).

The car still does not start, so looking for a little more help before I replace the starter.

I put the switch back together, installed it and with the ignition switch set to on, here are the voltage readings I get.

On the DIC it reads 11.8 volts
Battery Reads 12.08 volts
Under Hood Fuses:
Fuse #17, 18, 19 & 22 read 12.05 volts.
Fuse #13 & 16 read 12.01 volts.

By the time I got into the I/P Fuse box these were the readings:
Battery Volts: 11.97
Fuse #19 read 11.91 volts
Fuse #21 & #22 read 11.87 volts.

Thanks in advance for your help and feedback.

BTW / without lifting the car, how can I 'whack' the starter to see if that works while in Crank position. Also is there a way to pull a resistor and jump the starter?
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Old 01-11-2018, 10:50 PM   #386
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[QUOTE=cndblss;1596358738]Hi Bill,

I have a 2003 Anv. convertible.

I pulled my ignition switch and cleaned the black deposits off the switch contacts as you described (Thank You for all your posts!).

The car still does not start, so looking for a little more help before I replace the starter.

I put the switch back together, installed it and with the ignition switch set to on, here are the voltage readings I get.

On the DIC it reads 11.8 volts
Battery Reads 12.08 volts
Under Hood Fuses:
Fuse #17, 18, 19 & 22 read 12.05 volts.
Fuse #13 & 16 read 12.01 volts.

By the time I got into the I/P Fuse box these were the readings:
Battery Volts: 11.97
Fuse #19 read 11.91 volts
Fuse #21 & #22 read 11.87 volts.

Thanks in advance for your help and feedback.

BTW / without lifting the car, how can I 'whack' the starter to see if that works while in Crank position. Also is there a way to pull a resistor and jump the starter?[/QUOTE]


I know you can see the starter from the top as I use to THUMP my 02 Z starter from the TOP with a piece of REBAR that I tapped up with electrical tape. Wooden dowl or Rebar. Grab an assistant and THUMP it.

*BC*
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Old 01-13-2018, 05:40 AM   #387
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Quote:
Originally Posted by cndblss View Post
Hi Bill,

I have a 2003 Anv. convertible.

I pulled my ignition switch and cleaned the black deposits off the switch contacts as you described (Thank You for all your posts!).


Thanks in advance for your help and feedback.
Wiggle the big red wire coming from the fuse box under the hood and going to the starter before you try the broom stick and see if this will allow the car to start.
If that does not allow it to crank wiggle the same wire closer to the starter just beyond and outside of the battery box.
I have found this to be where my "issue" is but I have not traced the whole wire to see where my intermittent no crank issue is.

I have used BCs write up to clean my key switch but I still have a no crank issue 2 or three times a month.
I usually take time to pray and ask for the car to crank and it will. TRUE.

Last edited by drtyTshrt; 01-13-2018 at 05:44 AM.
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