Hello all! Hope youre well...

 

05 Colorado need to update miles. These trucks will only take the BCM miles. If you lower miles on cluster, BCM will put it back to whatever it has stored. If miles are higher than BCM, miles on cluster wont move until BCM miles reach cluster miles. I am familiar with programming cluster via eeprom, but the BCM? This I have no clue. I tried to read two IC 8 pin and one did have the VIN stored, but looked nothing like the cluster data. the other IC had nothing on it. Anyone know how to program the miles to the BCM?? Thanks guys.

Here's a pic

2 hours ago, bahnsro said:

Here's a pic

Car type: Chevrolet Colorado - 93c56 
The mileage is stored in the next lines:
0000: 06 12 06 12 06 12 06 12 06 12 06 12 06 12 06 12
0010: 06 12 06 12 06 12 06 12 06 12 06 12 06 12 06 12
0020: 06 12 xx xx xx xx xx xx xx xx xx xx xx xx xx xx
where the next bytes:
06 12 - is a mileage

 

 

 

2 hours ago, bahnsro said:

Here's a pic

or 

Car type: Chevrolet Colorado - (Dash+BCM) 
The mileage is stored in the next lines:
Dash chip type is 93c56, in BSI you must find 25040

First reset mileage in dash as shown here:
00D0: xx xx xx xx xx xx xx xx 00 00 00 00 xx xx xx xx
00F0: 00 00 00 00 xx xx xx xx xx xx xx xx xx xx xx xx

than calculate the mileage for BSI:
0080: 17 D7 84 00 17 D7 84 00 17 D7 84 00 xx xx xx xx
where the next bytes:
17 D7 84 00 - is a mileage

1 minute ago, LLCasaol said:

or 

Car type: Chevrolet Colorado - (Dash+BCM) 
The mileage is stored in the next lines:
Dash chip type is 93c56, in BSI you must find 25040

First reset mileage in dash as shown here:
00D0: xx xx xx xx xx xx xx xx 00 00 00 00 xx xx xx xx
00F0: 00 00 00 00 xx xx xx xx xx xx xx xx xx xx xx xx

than calculate the mileage for BSI:
0080: 17 D7 84 00 17 D7 84 00 17 D7 84 00 xx xx xx xx
where the next bytes:
17 D7 84 00 - is a mileage

I looked once for 25040 but didn't see any. I'll check again...

5 minutes ago, bahnsro said:

I looked once for 25040 but didn't see any. I'll check again...

BCM 25040

DASH 93C56

 

There is only two eeprom looking chips... With 8 pins. 

But I've also looked at every other chip. None with 25040. Unless I'm blind? Lol... 

13 minutes ago, bahnsro said:

But I've also looked at every other chip. None with 25040. Unless I'm blind? Lol... 

9365217 is 95040

I had a feeling that had to be it. But thank you for assuring me! I hope one day I'll be able to help someone....

This might help if you are still dealing with this issue