Diagnostic report help?

CLOWEGREEN

MEMBER
2005 GMC SIERRA
5.3L
V8
2WD
AUTOMATIC
315,000 MILES

So my new kingbolen ediag elite came in today and I did a health report but I'm not sure what some things mean and some I do understand but don't know where I should start now that I have this information. I hope this isn't too much to ask y'all but any help in understanding and next steps advice is really needed and appritiated.

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Thursday, June 26th, 2025 AT 9:39 PM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
54,138 POSTS

Got the love the KingBolen! I would just click on the "Think GTP" and the system will go in depth to each of the problems. If you need help beyond that please start a new thread for each instance.

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Friday, June 27th, 2025 AT 10:38 AM

CLOWEGREEN

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Yeah the think gpt part on my app just says answering. Then nothing.

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Friday, June 27th, 2025 AT 3:50 PM

KEN L

MASTER CERTIFIED MECHANIC
54,138 POSTS

I don't understand how you can have this many problems all at once? Does the car have water damage? I would clear all the codes and then start the car and then shut it off and run the codes again. Also, I would use another scanner maybe there is something wrong with the KINGBOLEN. Let me know.

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Saturday, June 28th, 2025 AT 10:32 AM

CLOWEGREEN

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Well the weird part is everytime I do another scan I get some the same or some different and even sometimes it wont scan or communicate with ecu and sometimes it tells me its not equipped with a bcm lol I think the only true code I should investigate is the class 2 short to ground. Which im about to do today so I printed all the connector views on all data the locations and pinouts to use DMM to test for continuity at each end because when I pull the comb out of my SP205 connector and test the pin terminals for resistance im getting about.756-.956 ohms on my circuits for pcm, memory seat module under driver seat, inflatable restraints sensing and diagnostic module(also under seat)and radio circuit. What would be your approach to this anyone?

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Saturday, June 28th, 2025 AT 11:14 AM

KEN L

MASTER CERTIFIED MECHANIC
54,138 POSTS

This is strange, does the car not run? You might have a bad BCM, I would test the powers and grounds for both the PCM and BCM with both units unplugged. If the grounds and powers are good send the PCM and BCM in for testing. Here are the locations. Check out the images (below). Let us know what you find.

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