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The key will intermittently not turn and when it does the vehicle will not crank. Also the cooling fan runs continuously with the key on and we cannot communicate with the PCM. Other modules on the CAN buss do communicate.

Tools used
- AES LineSPI (SMART BOB)
https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/AES-LineSPI-SMART-BOB-p8754.html
- Deluxe DMM w/Amp Shutters (AES# esi-582)
https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/582-Deluxe-DMM-w-Amp-Shutters-p9340.html
- OTC 3633 Mini Circuit Tester
https://www.jbtoolsales.com/otc-3633-mini-circuit-tester#oid=1014_1
Alternate to the Snap-on Verus I used in this video
- PicoScope 4425 4 Channel Standard Diagnostic Kit
https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/PicoScope-4425-4-Channel-Standard-Diagnostic-Kit-p9276.html
- Autel MaxiSYS MS908 Diagnostic System with Wireless VCI
https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/Autel-MaxiSYS-MS908-Diagnostic-System-with-Wireless-VCI-p9202.html

Related videos
- Sensor grounds and the 5v reference circuit 92 Ford Taurus no start
https://www.youtube.com/edit?o=U&video_id=wg_farG5MG0
- Testing the 5v Reference Circuit (newest version)
https://www.youtube.com/edit?o=U&video_id=cN7CwbPogyg
- Sensor Wiring and the 5v Reference Circuit
https://www.youtube.com/edit?o=U&video_id=-3_FRHRcr28
- Chrysler Sebring 2.4L no start (part 1)
https://youtu.be/e0uRuEhhjEA
- How to check the 5v reference circuit for a short to ground (Cadillac)
https://www.youtube.com/watch?v=uyncVz_HAtA&t=32s
- No Start from a shorted MAP sensor (Honda, Acura)
https://www.youtube.com/watch?v=za13UnpbH7E
- How to test an electronic EGR valve (GM P1406 case study)
https://www.youtube.com/watch?v=te_kapz-fj4&t=779s

This channel is dedicated to training both the do it yourself mechanic and the professional technician. It does not matter your level of experience, I can teach you to troubleshoot electrical and electronic systems of both cars and trucks, gasoline and diesel. The information I cover is focused on universal concepts, that apply to all systems, in all model years. It is even applicable to other non automotive related systems.
Some basic electrical knowledge is helpful but not necessary. Start with my week 1 playlist to get an overview of my class at Rosedale Technical College. From there you will find coordinated week by week teaching through my book as well as new weekly case study uploads

Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express 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 the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.