Starting Problem. HELPPPPPPP
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,332
Likes: 3,247
From: Hartford WI
Starting Problem. HELPPPPPPP
Car was running ok. It would die in idle once in a while. Yesterday, it wouldn't crank. Everything seemed ok. Security light did not come on. Crank it but it wouldn't crank. Smoke seemed to come out of the radio area. Starter relay was replaced but that was not the answer. Nothing seemed wrong with the Neutral Safety Switch.
From the location, only one thing remains. The CCM. Is there a way to test it before I have to replace it?
From the location, only one thing remains. The CCM. Is there a way to test it before I have to replace it?
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Boy would that be neat if you told us what year Corvette it is.
The CCM isn't involved with the starter motor circuit. You have a VATS problem. Use the search function, there is a ton of info on VATS. I have typed the test procedure more than 380 times.
The CCM isn't involved with the starter motor circuit. You have a VATS problem. Use the search function, there is a ton of info on VATS. I have typed the test procedure more than 380 times.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
At least the OP does have his profile filled out and on his 91 the CCM is very much a part of the starter motor circuit.
It is possible to pull codes from the CCM, but I am not sure it will identify the problem if it went up in smoke. See this link, then scroll down to Sequenced Code Recovery 1990-1993. As always retrieving codes is just a starting point for diagnosis, you will need the correct FSM to isolate the problem,
http://www.corvettephotographs.com/c4vettes/codes.htm
I have been told forum vendor vette2vette can get CCM's rebuilt but have not tried it myself, good luck.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
The --- indicates there are no codes in the CCM (module 4)
Verify you have a fully charged battery and cable connections are clean and tight at the battery and starter terminals. The starter and charging system diagnosis section of FSM book two says to follow the procedure in chart #1 if no codes are present in the CCM.
Verify you have a fully charged battery and cable connections are clean and tight at the battery and starter terminals. The starter and charging system diagnosis section of FSM book two says to follow the procedure in chart #1 if no codes are present in the CCM.
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,332
Likes: 3,247
From: Hartford WI
The --- indicates there are no codes in the CCM (module 4)
Verify you have a fully charged battery and cable connections are clean and tight at the battery and starter terminals. The starter and charging system diagnosis section of FSM book two says to follow the procedure in chart #1 if no codes are present in the CCM.
Verify you have a fully charged battery and cable connections are clean and tight at the battery and starter terminals. The starter and charging system diagnosis section of FSM book two says to follow the procedure in chart #1 if no codes are present in the CCM.
Still I wonder why there was smoke from the radio when I started to crank it. I will have to take out the CCM and see if it smells bad.
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Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,332
Likes: 3,247
From: Hartford WI
Well, after trying to remove the CCM, I gave up and called Gordon Killbrew. He gave me the weirdest idea. Follow the yellow wire from the Neutral Safety Switch. WTF!!! NFW in hell. Oh well, I'll go take a look. Sure enough the yellow wire was burnt and smoked with me twitching the key. Guess I will have to reinstall the CCM brackets and put it back together after I fix it. Best $20 I spent in a long time.
Team Owner
Joined: Sep 2003
Posts: 20,170
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Your a lucky man.
When I called about a suspension problem,
I was charged 45 bucks and told, "AHhhhh, I dunno"
Complete waste of my time and money.
The man is sharp, no doubt about it.
But not perfect.
When I called about a suspension problem,
I was charged 45 bucks and told, "AHhhhh, I dunno"
Complete waste of my time and money.
The man is sharp, no doubt about it.
But not perfect.
Le Mans Master
Joined: Jan 2003
Posts: 5,858
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From: Santa Maria CA
Trying to fix people's cars sight unseen over the phone has to have it's limitations.
Race Director
Joined: Jan 2005
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From: Slidell Louisiana
Mike
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,332
Likes: 3,247
From: Hartford WI
The automotive gods have smiled on me. Car starts.
The wire was burnt in who knows how many places. I used a 10 ga wire and ran it from the relay.
4 wires on the relay. The last GD MF SOB who fixed it must use all 12 ga yellow wires. WTF!!!
The wire was burnt in who knows how many places. I used a 10 ga wire and ran it from the relay.
4 wires on the relay. The last GD MF SOB who fixed it must use all 12 ga yellow wires. WTF!!!
Last edited by aklim; Sep 26, 2009 at 04:39 PM.
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,332
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From: Hartford WI
Melting Slicks
Joined: Aug 2008
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From: Palmdale CA
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,332
Likes: 3,247
From: Hartford WI
Pretty much every year can be affected either when owned by or fixed by some numb nuts. I mean, can't you use some common sense and NOT fix it with 3 out of 4 wires made from the same spool?