SYS Fix Write up Broken
Team Owner
Joined: Sep 2003
Posts: 25,414
Likes: 2,745
I have this from last year from user -=Jeff=- and it's referenced to what you mention. I likely have the TSB. I'll look.
radio TSB (1).pdf
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Here's the TSB as I have it:
93-68-9A.pdf
Use the appropriate wiring diagram from your year specific FSM for schematic clarification. It should be 8A-117 in any year.
I'd also suggest you post just what you're trying to accomplish because there's been many comments through the years regarding different years etc.
This is a "copy/paste" from the CAC regarding the TSB - there's no other relevant information in the thread that I saw.
If "SYS" is displayed in the LCD section of the instrument panel cluster after the customer installs a new (aftermarket) stereo, he will need to do the following:
1. Buy (2) 1 kilo-ohm 1/2 watt resistors. [Radio Shack part # 271-023. They sell them as a 2pk for .29 cents.]
2. Disconnect the negative battery cable.
3. Remove the receiver.
4. Connect one end of both resistors to ignition power. (Yellow wire in the car)
5. Connect the other end of one resistor to the purple/white wire in the car.
6. Connect the other end of the second resistor to the grey/black wire in the car.
7. Cover all connections and completely cover the resistors.
8. Reconnect the negative battery cable.
Maybe this will help.
radio TSB (1).pdf
------------------------------------------------------------------------------------------------------
Here's the TSB as I have it:
93-68-9A.pdf
Use the appropriate wiring diagram from your year specific FSM for schematic clarification. It should be 8A-117 in any year.
I'd also suggest you post just what you're trying to accomplish because there's been many comments through the years regarding different years etc.
This is a "copy/paste" from the CAC regarding the TSB - there's no other relevant information in the thread that I saw.
If "SYS" is displayed in the LCD section of the instrument panel cluster after the customer installs a new (aftermarket) stereo, he will need to do the following:
1. Buy (2) 1 kilo-ohm 1/2 watt resistors. [Radio Shack part # 271-023. They sell them as a 2pk for .29 cents.]
2. Disconnect the negative battery cable.
3. Remove the receiver.
4. Connect one end of both resistors to ignition power. (Yellow wire in the car)
5. Connect the other end of one resistor to the purple/white wire in the car.
6. Connect the other end of the second resistor to the grey/black wire in the car.
7. Cover all connections and completely cover the resistors.
8. Reconnect the negative battery cable.
Maybe this will help.
Last edited by WVZR-1; Aug 19, 2017 at 07:04 AM.
Thread Starter
Racer
Joined: Apr 2005
Posts: 382
Likes: 23
From: Acworth, GA
Thanks!
In terms of what I'm trying to accomplish, I have a 96 that I bought a couple of years ago, that had an aftermarket head unit in place of the stock Delco unit. It's had the SYS light flash a few times once a minute or so as long as I've had it. Hoping this will fix my issue.
I've replaced the battery along the way, because it died on me and was 5 years old. And it still does it.
Now I've also now engine swapped the car so who k led what else the CCM might be unhappy about. 😄
In terms of what I'm trying to accomplish, I have a 96 that I bought a couple of years ago, that had an aftermarket head unit in place of the stock Delco unit. It's had the SYS light flash a few times once a minute or so as long as I've had it. Hoping this will fix my issue.
I've replaced the battery along the way, because it died on me and was 5 years old. And it still does it.
Now I've also now engine swapped the car so who k led what else the CCM might be unhappy about. 😄
Thread Starter
Racer
Joined: Apr 2005
Posts: 382
Likes: 23
From: Acworth, GA
That did it. No more flashing SYS! Woohoo!
For anyone who's interested, the wires in question were the same color in my 96 as listed in the aforementioned post regarding a 90-93.
Thanks again.
Will
For anyone who's interested, the wires in question were the same color in my 96 as listed in the aforementioned post regarding a 90-93.
Thanks again.
Will
Last edited by WRC7732; Aug 19, 2017 at 02:58 PM.
