C6 OBD not reading for emissions
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 42
Likes: 2
From: Nashville
C6 OBD not reading for emissions
New to me C6. 2006 with 17k miles. Would not read at the emission station. It does have power and cig lighter also working. I did notice the traction light and service traction came on when she tried to scan. It went off when I restarted the car.
Anyone been down this road?
Anyone been down this road?
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
New to me C6. 2006 with 17k miles. Would not read at the emission station. It does have power and cig lighter also working. I did notice the traction light and service traction came on when she tried to scan. It went off when I restarted the car.
Anyone been down this road?
Anyone been down this road?
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
OBDII port wiring does a direct connect to the BCM.
So would start of with cleaning the OBD II connector pins in case they are dirty or corroded, and if that does not solve the problem, then time to disconnect the battery to pull and clean the BCM connectors next.
So would start of with cleaning the OBD II connector pins in case they are dirty or corroded, and if that does not solve the problem, then time to disconnect the battery to pull and clean the BCM connectors next.
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 42
Likes: 2
From: Nashville
After some reading. I am hoping it just needs to have a Drive Cycle completed.
I would be surprised if connections were corroded. This car has been kept in a climate controlled garage and never been in the rain.
I would be surprised if connections were corroded. This car has been kept in a climate controlled garage and never been in the rain.
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 42
Likes: 2
From: Nashville
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 42
Likes: 2
From: Nashville
Updating for anyone who reads in the future. It was the Drive cycle.
It ended up taking me 340 miles total.
20 cycles of starting the car from cold to warm and driving around. Mix of highway and city. I did the 55mph to 20mph without braking twice during that time.
Evap system just started reading one afternoon after sitting for a few hours.
It ended up taking me 340 miles total.
20 cycles of starting the car from cold to warm and driving around. Mix of highway and city. I did the 55mph to 20mph without braking twice during that time.
Evap system just started reading one afternoon after sitting for a few hours.
Last edited by Southernace76; Jun 19, 2020 at 11:07 AM.
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