No response from ECM

[durallymax]

Last night after installing a DSP5 switch I went to do a full reflash on an 03 LB7 and it stopped 509k (out of 512k) into the process and froze, then kicked me out. I tried everything to try and get the ECm to respond and take a calibration but nothing ive tried seems to work. Tryed it without high speed, unhooked batteries for 15 minutes, but still everytime I try to flash it I get the message "no response from ECM."

I dont know if the ECm took a poop or what. I have another ECM out of an LB7 here, and was thinking of swapping them but wanted to see if there were any ideas before I do that.

Also wondering if I swap ECMs do I need a Tech II to marry the ECM to the truck or not?

Thanks much.

[Tordne]

Pull the Radio and Info fuses when doing the flash attempt. Also please check that your software and firmware are up to date (for FlashScan V2 only) as there is a dependency between all the software and hardware components.

Here are a couple of knowledgebase articles relating to software and firmware updates:
- Software
(http://support.efilive.com/kb_article.php?ref=5404-IJZV-0820)- Firmware
(http://support.efilive.com/kb_article.php?ref=7243-SFGL-2949)

If you still have issues please see this article (http://support.efilive.com/kb_article.php?ref=8254-QOGC-9586) and email me (support@efilive.com) the specific file.

If you do use the other PCM you can perform a VATS link.

Regards,

[durallymax]

I got it going, swapped the ECM and all was good. Sending the other one to Guy@SoCal for him to look at/repair.

[joecar]

I got it going, swapped the ECM and all was good. Sending the other one to Guy@SoCal for him to look at/repair.What did you do to get it going...?

[8100 Power]

What did you do to get it going...?

He put a different ECM in and sent the non responsive one in to Guy @ SoCal.