Installing used BCM on '98 Vert
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Intermediate
Joined: Jan 2005
Posts: 35
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From: Louisville Kentucky
Installing used BCM on '98 Vert
I had better luck. My 98 vert's BCM would not wake up and I installed the normally closed switch in the place of the BCM power fuse. This allowed me to manually wake up the BCM until I could get it replaced. (I think it was fuse #26?) I then purchased a used BCM on eBay ($149 versus dealer wanted $1300) which has the exact same service/part number. I think this is very important from what I have read. It was from a wrecked '98 coupe vett with 6-speed trany. My car is '98 vert with auto trany.
I installed the used BCM and it came on immediately. The lights, radio, and windows worked.
No problem waking it up. But No engine response. I had to do the 3 step learning process between the BCM & PCM to get the engine to turn over. I did install a 12 volt trickle charger during the learning process to be sure the battery voltage did not drop below 10.5 volts during the learning process.
After the learning process, the engine started and stopped 4 times. I waited 30 seconds and the engine started on the 5th try, and it has run great for over one day now. So far I have found nothing that needs to be programmed by the dealer. Everything works including traction control. I may not have to go to the dealer for programming the rpo's into the BCM.
I installed the used BCM and it came on immediately. The lights, radio, and windows worked.
No problem waking it up. But No engine response. I had to do the 3 step learning process between the BCM & PCM to get the engine to turn over. I did install a 12 volt trickle charger during the learning process to be sure the battery voltage did not drop below 10.5 volts during the learning process.
After the learning process, the engine started and stopped 4 times. I waited 30 seconds and the engine started on the 5th try, and it has run great for over one day now. So far I have found nothing that needs to be programmed by the dealer. Everything works including traction control. I may not have to go to the dealer for programming the rpo's into the BCM.
