BCM in 98
Thread Starter
Heel & Toe
Joined: Nov 2005
Posts: 20
Likes: 0
BCM in 98
The dealer says I need a new BCM. He tells me this will cost me 608$ for Labor, Parts, and Tax. Is this something I can do myself or is it best to just have the dealer do it for me. Keep in mind if I dont have the dealer do it, I have to pay him the 85$ service fee for looking at the car and then I have to have it towed back. Anyways....let me know what you think.
Pro
Joined: Jun 2005
Posts: 593
Likes: 1
You could swap BCMs in less then 5 minutes
What you cannot do is program it as what features or options car has.
It also would need to be relearned to the PCM which you can do a relearn process so engine will start and run.
If a dealer would work with you you could buy a BCM, you do the install and save their labor costs but then have to pay them to hook up a Tech-II and program BCM so in the end it is what the cheapest path and less hassle is for you.
What you cannot do is program it as what features or options car has.
It also would need to be relearned to the PCM which you can do a relearn process so engine will start and run.
If a dealer would work with you you could buy a BCM, you do the install and save their labor costs but then have to pay them to hook up a Tech-II and program BCM so in the end it is what the cheapest path and less hassle is for you.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If you can drive the car to the dealer, install the BCM in the parking lot and tell them that the car will not start because you installed a new BCM. They will have to push the car into the bay and then flash the BCM to your PCM. By installing the BCM in your car you will substract approx 30 min from the fee that they can charge you for flashing the BCM to your car.
If your labor cost are anything like they charge in CT it will be about $70 to have the dealer program the BCM to your car.
Good luck
Bill C
If your labor cost are anything like they charge in CT it will be about $70 to have the dealer program the BCM to your car.
Good luck
Bill C
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Yea,, FRCTony is correct,, what makes you think you need a new BCM!
Give us your DTC error codes so that we can see waht the dealer thinks is wrong!
BC
Give us your DTC error codes so that we can see waht the dealer thinks is wrong!
BC
Last edited by Bill Curlee; Dec 6, 2005 at 12:43 AM.
Thread Starter
Heel & Toe
Joined: Nov 2005
Posts: 20
Likes: 0
my codes are as follows:
10PCM P1431 H
10PCM P1626 H
28 TCS C1255 H
40 BCM No Comm
60 IPC U1176 H C
60 IPC U1160 H C
99 HVAC No Comm
A1-RDCM U 1064 H
A0-LCDM U 1064 H
B0-RFA U 1064 H
My car is acting all haywire...The lights flickered off and the car wouldnt turn over...I thought it was the battery so I bought a new one. The same thing happened about 15 seconds after I got it to run...lights flickered, dimmed, loud ticking from the BCM area, then everything shut off. :-/ Dealer says BCM needs to be replaced. They agreed to let me purchace it and they would install it and program it for 100$ Saving me over 250$
10PCM P1431 H
10PCM P1626 H
28 TCS C1255 H
40 BCM No Comm
60 IPC U1176 H C
60 IPC U1160 H C
99 HVAC No Comm
A1-RDCM U 1064 H
A0-LCDM U 1064 H
B0-RFA U 1064 H
My car is acting all haywire...The lights flickered off and the car wouldnt turn over...I thought it was the battery so I bought a new one. The same thing happened about 15 seconds after I got it to run...lights flickered, dimmed, loud ticking from the BCM area, then everything shut off. :-/ Dealer says BCM needs to be replaced. They agreed to let me purchace it and they would install it and program it for 100$ Saving me over 250$
Last edited by SDotC5Vette; Dec 6, 2005 at 03:07 AM.
Pro
Joined: Jun 2005
Posts: 593
Likes: 1
Check for blown BCM or PCM fuses.
Before replacing BCM see if it needs to be relearned to PCM again.
Make sure battery is fully charged and turn all electronic functions off
Use a stopwatch if possible and turn key on for 11 minutes
Then turn off key for 30 seconds.
Do this 3 cycles and that process informs PCM and BCM to relearn to each other and resync.
Before replacing BCM see if it needs to be relearned to PCM again.
Make sure battery is fully charged and turn all electronic functions off
Use a stopwatch if possible and turn key on for 11 minutes
Then turn off key for 30 seconds.
Do this 3 cycles and that process informs PCM and BCM to relearn to each other and resync.
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
What year car is it? If you have ever had a leak in the passengers foot well, the BCM circuit board could have white corrosion deposits on it. This will cause it to do some really weird stuff!!! If youthink that you need to replace it, hell, might as well expirement! Disconnect the BATTERY!! Remove the module from the passengers foot well.
Pry open the aluminum cover of the box.
Here is whatyou will see:
NOTE!!! The module is heldinside the box with a single screw on the bottom of the box! DO NOT remove this screw until you have opened the top of the box and noted the position of the IC componet that is located on the top right hand side of the board. If yours is grounded to the box or isolated from the box, MAKE SURE that it get put back in the same condition!
Remove the screw that holds the board in the box. Inspect the BOTTOM of the circuit board. Look for corossion. If there is any, remove it with a stiff bristle brush and alcohol.
BCM failures are often the result of a faulty battery!!!! MAKE sure that you battery is 100% good and the battery terminals are clean and torqued in place at 11 ft/lbs.
Make sure that the carpets in the pass foot well are dry. Water on the BCM will cause all sorts of electrical havoc!!!!!!!!!
BC
Pry open the aluminum cover of the box.
Here is whatyou will see:
NOTE!!! The module is heldinside the box with a single screw on the bottom of the box! DO NOT remove this screw until you have opened the top of the box and noted the position of the IC componet that is located on the top right hand side of the board. If yours is grounded to the box or isolated from the box, MAKE SURE that it get put back in the same condition!
Remove the screw that holds the board in the box. Inspect the BOTTOM of the circuit board. Look for corossion. If there is any, remove it with a stiff bristle brush and alcohol.
BCM failures are often the result of a faulty battery!!!! MAKE sure that you battery is 100% good and the battery terminals are clean and torqued in place at 11 ft/lbs.
Make sure that the carpets in the pass foot well are dry. Water on the BCM will cause all sorts of electrical havoc!!!!!!!!!
BC
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Originally Posted by Bill Curlee
What year car is it? ...Make sure that the carpets in the pass foot well are dry. Water on the BCM will cause all sorts of electrical havoc!!!!!!!!!
BC
BC
Your advice has been right on the money for me personally more than a few times and I, like many others, really appreciate your unselfish participation here on the Forum. It is people like you that make owning these cars just that much more enjoyable.
Thank you... GUSTO
