Uploaded June 2020 | Updated September 2026, 3 hours ago
In today's case study we are looking at a 2007 Cadillac CTS with a V6 3.6L engine. The customers complaint is that the vehicle intermittently will not start, also the key is stuck in the ignition lock cylinder. The vehicle will not release the key. On top of those concerns, the charging system is not charging as it should. charging sytem voltage hovers around 12.5v while running and only intermittently will it begin charging normal. The shop that was looking at the vehicle noted that when they used a scan tool to check for codes, they found multiple communication codes for the class 2 serial data bus network. Follow along as I take you step by step through my diagnostic and troubleshooting procedure to figure out what is wrong with this vehicle and how to fix it.
Thank you for watching!
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*If this video helped you in any way and you would like to donate. Please
Click the link to Donate! paypal.me/advancedlevelauto
Thank you so much for your support!
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Visit our Amazon store here amazon.com/shop/advancedlevelauto
to shop for our channels recommended tools and gadgets!
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*You can email your questions and concerns to advancedlevelauto@gmail.com
Disclaimer:
Due to factors beyond the control of Advanced Level Auto, I cannot guarantee against improper use or unauthorized modifications of this information. Advanced Level Auto assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Advanced Level Auto recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Advanced Level Auto, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Advanced Level Auto.
In today's case study we are looking at a 2007 Cadillac CTS with a V6 3.6L engine. The customers complaint is that the vehicle intermittently will not start, also the key is stuck in the ignition lock cylinder. The vehicle will not release the key. On top of those concerns, the charging system is not charging as it should. charging sytem voltage hovers around 12.5v while running and only intermittently will it begin charging normal. The shop that was looking at the vehicle noted that when they used a scan tool to check for codes, they found multiple communication codes for the class 2 serial data bus network. Follow along as I take you step by step through my diagnostic and troubleshooting procedure to figure out what is wrong with this vehicle and how to fix it.
Thank you for watching!
!!!Please don't forget to "LIKE" the video & "SUBSCRIBE" to the channel!!!
**********************************************************************
*If this video helped you in any way and you would like to donate. Please
Click the link to Donate! paypal.me/advancedlevelauto
Thank you so much for your support!
***********************************************************************
Visit our Amazon store here amazon.com/shop/advancedlevelauto
to shop for our channels recommended tools and gadgets!
************************************************************************
*You can email your questions and concerns to advancedlevelauto@gmail.com
Disclaimer:
Due to factors beyond the control of Advanced Level Auto, I cannot guarantee against improper use or unauthorized modifications of this information. Advanced Level Auto assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Advanced Level Auto recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Advanced Level Auto, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Advanced Level Auto.







