Each suggests a failed or discharged battery. Both of them together are a dead giveaway.
The problem is either the battery or else the connections to it.
Have vehicle scanned to determine the problem
1999 Chevy Venture, ALL Chevy Venture and Pontiac Montana model years
#12a
If the brake lights do not work on Chevy Venture van 2000, try to disconnect the brake switch. Then short the two contacts of the connector to check if the brake lights are now working.
Maximum weight for the Chevy Venture varies by the year of the vehicle. The 2014 model has a maximum weight of 3,500 pounds.
Hit something with the nose of the vehicle.
Hi, You didn't mention exactly what lights you are interested in, but I have included a link to the fuse boxes for the 2001 Venture. Good Luck, Greg
There is a circuit board inside each light that usually shorts out. They cost around $30 each. The bulb attaches to the board
Inside the fuel tank.
Alternator is going out? battery is going bad?
there is a switch on the ceiling of the van
Most likely NOT.