no communication with PCM, security not flashing. I do I check for communication issues?
Aug 11, 2016 at 8:51 PM
fail to start
2014 TOYOTA COROLLA
SAMUEL OLEFILE SIBIYA
- MEMBER
- 2 POSTS
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good morning,
Does the check engine light work?
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
What kind of scan tool are you using? Try using it on another car to see if it works. A lot of times, it is a scan tool.
Did you check for spark or fuel? That will tell me if the ECM is working.
I attached the procedure for the ECM. Make sure the fuses are good with power on both sides.
Check out the images (below). Please let us know what happens.
Does the check engine light work?
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
What kind of scan tool are you using? Try using it on another car to see if it works. A lot of times, it is a scan tool.
Did you check for spark or fuel? That will tell me if the ECM is working.
I attached the procedure for the ECM. Make sure the fuses are good with power on both sides.
Check out the images (below). Please let us know what happens.
Images (Click to enlarge)
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Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Jul 17, 2021 at 7:49 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.