"No bus" troubles

[P man]

Have wrangler fix get you setup with a good computer and go from there

 

[the_nayton]

@Wranglerfix I can't send PMs yet cause I just joined

 

[P man]

@Wranglerfix I can't send PMs yet cause I just joined

@Chris

 

[Chris]

@Wranglerfix I can't send PMs yet cause I just joined

I enabled them for you just now.

 

[Wranglerfix]

@Wranglerfix I can't send PMs yet cause I just joined.

I have all the TJ software years. Is your Jeep a federal or low (California) emissions? Auto or manual?

 

[the_nayton]

I enabled them for you just now.

Thanks Chris

 

[the_nayton]

I have all the TJ software years. Is your Jeep a federal or low (California) emissions? Auto or manual?

I am not sure about the emissions. It is a 4-speed automatic

 

[Wranglerfix]

I will run the vin in the morning to confirm the part number and get back to you. I’ll keep it under a grand don’t worry!

 

[the_nayton]

I will run the vin in the morning to confirm the part number and get back to you. I’ll keep it under a grand don’t worry!

The only other numbers on the ECM itself is this one that someone engraved

 

[Wranglerfix]

The engraving doesn’t have any inflammation that I can see. It could a bluestreak’s marking or someone else’s. I will get the lowdown in the morning.

 

[Wranglerfix]

I did some research and @Wranglerfix will correct me if I am wrong.
None of the ECUs listed below cross over.... between the years.

The following are 1999 ECUs: 56041457AA, 56041457AB, 56041457AC, 56041457AD, 56041457AE, 56041458AA, 56041458AB, 56041458AC, 56041458AD, 56041458AE, 56041459AA, 56041459AB, 56041459AC, 56041459AD, 56041459AE, 56041461AA, 56041461AB, 56041461AC, 56041461AD, 56041461AE, 56041462AA, 56041462AB, 56041462AC, 56041462AD, 56041462AE, 56041463AA, 56041463AB, 56041463AC, 56041463AD, 56041463AE, 56041465AA, 56041465AB, 56041465AC, 56041465AD, 56041465AE, 56041466AA, 56041466AB, 56041466AC, 56041466AD, 56041466AE, 56041467AA, 56041467AB, 56041467AC, 56041467AD, 56041467AE, 56041469AA, 56041469AB, 56041469AC, 56041469AD, 56041469AE, 56041470AA, 56041470AB, 56041470AC, 56041470AD, 56041470AE, 56041471AA, 56041471AB, 56041471AC, 56041471AD & 56041471AE

The following are 2000 ECUs: 56041652AC, 56041652AD, 56041652AE, 56041653AC, 56041653AD, 56041653AE, 56041653AF, 56041653AG, 56041653AH, 56041653AI, 56041654AE, 56041657AC, 56041657AD, 56041657AE, 56041657AF, 56041657AG, 56041658AC, 56041658AD, 56041658AE, 56041658AF, 56041658AG, 56041658AH, 56041658AI, 56041658AJ, 56041659AE, R6041652AE, R6041653AI, R6041657AG & R6041658AJ

The ECMs have a family number that can overlap In certain years. The last two letters of the part number always start with AA. Every time there is an engineering update the second letters goes to B, C, etc.