Flashing check engine light and no codes


Howella66442

New Member
Joined
Feb 10, 2021
Messages
14
Location
Springfield, MO
I tried to hookup a bluetooth obd tool and tried to get it to read with multiple apps (torque pro, dash command, vgate, and others) with no luck. I saw that I had the flashing check engine light (10 flashes).
I rook it to the dealership and they performed the tsb (at their expense). It's been about 600 miles and I still get the ten flashes. No codes. My snap on ethos tool hooks up and I can run full diagnoses with it (Had to change OPDA.). Just as a side note, you can see the cam/crank degree correlation ° with this tool. Adjusted to 0°. What am I missing here?
 
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Howella66442

Howella66442

New Member
Joined
Feb 10, 2021
Messages
14
Location
Springfield, MO
I tried to hookup a bluetooth obd tool and tried to get it to read with multiple apps (torque pro, dash command, vgate, and others) with no luck. I saw that I had the flashing check engine light (10 flashes).
I rook it to the dealership and they performed the tsb (at their expense). It's been about 600 miles and I still get the ten flashes. No codes. My snap on ethos tool hooks up and I can run full diagnoses with it (Had to change OPDA.). Just as a side note, you can see the cam/crank degree correlation ° with this tool. Adjusted to 0°. What am I missing here?

20210220_180129.jpg
 

RMETeeJay

TJ Enthusiast
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Sep 30, 2019
Messages
571
Location
Upper Arkansas Valley
AFAIK, a flashing CEL is typically caused by misfiring.

In my case, when I changed my OPDA I still got misfiring until I reset the ECM.

Have you tried the key on/off method for obtaining codes yet?
 
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Howella66442

Howella66442

New Member
Joined
Feb 10, 2021
Messages
14
Location
Springfield, MO
When you turn the key to on position (engine off) and get 10 flashes, it means I/M readiness testing not complete. This led to the (X51) TSB lifetime warranty. I had the dealership do the TSB and still get the 10 flashes. I also seem not to be able to hookup bluetooth dangles for torque and dash command. My phone is connected to the device, but it can not connect to vehicle. My snap on diagnostic tool hooks up and has live data just fine. I look and have no codes.
 
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Howella66442

Howella66442

New Member
Joined
Feb 10, 2021
Messages
14
Location
Springfield, MO
When you turn the key to on position (engine off) and get 10 flashes, it means I/M readiness testing not complete. This led to the (X51) TSB lifetime warranty. I had the dealership do the TSB and still get the 10 flashes. I also seem not to be able to hookup bluetooth dangles for torque and dash command. My phone is connected to the device, but it can not connect to vehicle. My snap on diagnostic tool hooks up and has live data just fine. I look and have no codes.
Also, engine runs fine with no misfires or any other issues.
 

JKP

TJ Enthusiast
Joined
Aug 20, 2020
Messages
145
Location
Warner Robins GA
Have you tried a hard reset by disconnecting the battery terminals and touching them to drain the capacitors? Or just leave them disconnected for a long time.
 
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RMETeeJay

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Sep 30, 2019
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Location
Upper Arkansas Valley
Took them off for about 30 minutes for the opda change.
I'd try doing the full ECM reset:


Like I said earlier, after replacing my OPDA I was still getting a flashing CEL and misfire codes at high RPMs. It seemed to drive OK, but doing the reset made the light stop.
 
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Howella66442

Howella66442

New Member
Joined
Feb 10, 2021
Messages
14
Location
Springfield, MO
Bought the obd device used. Tried it on my 2016 dodge caravan without success as well. I betting you are correct in the statement that the device may be bad.