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15yearsaturnguy
15yearsaturnguy, Saturn master tech
Category: Saturn
Satisfied Customers: 1918
Experience:  25 years automotive experience, 15 years with Saturn
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can i use a used bcm from my parts car

This answer was rated:

can i use a used bcm from my parts car

15yearsaturnguy :

Hello and thank you for your post. I am a master certified GM tech, with 15 years Saturn experience,and can help you to resolve your issue.

15yearsaturnguy :

If you take a BCM from a used car and put it in your car, the miles will be wrong on the odometer and the car will not start.

15yearsaturnguy :

If any options of the car are different such as type of a/c system, power windows, keyless entry etc... then the bcm will have to be reprogrammed to match your car.

15yearsaturnguy :

either way the security system needs to be relearned so th ecar will start.

15yearsaturnguy :

To do that, turn the key on, turn th ekey to crank and let the key return to run for 11 minutes.

15yearsaturnguy :

turn the key off and repeat 2 more times

15yearsaturnguy :

after the third time take the key out for 1 minute and the car should start.

15yearsaturnguy :

if it doesn't then the bcm will need reprogramming but never will the mileage be correct. Mileage is not reprogramable.

15yearsaturnguy and 2 other Saturn Specialists are ready to help you

if you need add'l help let me know.