ZR-1 Net Registry Forums - View Single Post - Electrical starting system shutdown-could be nuclear meltdown

Dave2 · 08-13-2013

Ladies and Gentlemen- we have the answer........................

CCM failure. The failed unit that was in the car had a factory rebuilt sticker on it-
The DERM (SIR system) also had a factory rebuilt sticker
Sent my CCM unit to K&B Special Products Alpharetta Ga. (GM authorized rebuilder) 770-777-1034 and $280. The tech's there indicated #1 cause of failure is high voltage- either a spike or voltage regulator drift 15V+. But they reiterated several times that these units had a limited life, and have seen units just croak.
I reinstalled the rebuilt CCM in the car (remember the story of the proctologist who did a valve job on his car engine via the exhaust pipe,) the CCM is buried against the firewall so it's either a choice of pulling the whole dash or forcing it out the center console area and risk collateral damage. I voted for the former though it resulted in a lengthy delay due to my lack of free time.
Turned the key and everything worked!!!
Now I just need to figure out what to disconnect/bepass for the Low tire Pressure Warning system indicator- I'm not running the sensors in my street tires and rims.

See you at Carlisle!

08-13-2013	#5
Dave2 Join Date: Apr 2013 Location: Connecticut Posts: 10	Re: Electrical starting system shutdown-could be nuclear meltdown Ladies and Gentlemen- we have the answer........................ CCM failure. The failed unit that was in the car had a factory rebuilt sticker on it- The DERM (SIR system) also had a factory rebuilt sticker Sent my CCM unit to K&B Special Products Alpharetta Ga. (GM authorized rebuilder) 770-777-1034 and $280. The tech's there indicated #1 cause of failure is high voltage- either a spike or voltage regulator drift 15V+. But they reiterated several times that these units had a limited life, and have seen units just croak. I reinstalled the rebuilt CCM in the car (remember the story of the proctologist who did a valve job on his car engine via the exhaust pipe,) the CCM is buried against the firewall so it's either a choice of pulling the whole dash or forcing it out the center console area and risk collateral damage. I voted for the former though it resulted in a lengthy delay due to my lack of free time. Turned the key and everything worked!!! Now I just need to figure out what to disconnect/bepass for the Low tire Pressure Warning system indicator- I'm not running the sensors in my street tires and rims. See you at Carlisle!