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Discussion Starter · #1 ·
So My car threw this code today. It's apparently the ECM/PCM not being able to detect how long the engine has been turned off (apparently needed to complete a drive cycle for internal test monitors).
Has anyone had this issue before or know how to fix it?
Apparently the only fixes I can find online are:
  • Replace the ECM/PCM
  • Reprogram the ECM/PCM
  • Repair the wiring to the ECM/PCM for shorted key power to battery power.
I'll start with Battery power since I know this battery's the OEM and has been around since 2017...
Thanks in advance for the help.
 

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Discussion Starter · #2 ·
UPDATE: I removed the battery, cleaned the posts and removed a little bit of hydrogen gas/corrosion that was sitting on top. I'll have to paint the top clamp with something to keep it from corroding again since it ate through the paint.
Anywho, when I powered up the car it no longer had the check engine light and the code was listed as a historical code vs an active one. I rode it around for several hours and didn't notice any issue. It was shut off and on several times, and the light never returned. I'll paint the clamp today and see if the code returns after a cold start.
 

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Discussion Starter · #3 · (Edited)
Motor vehicle Font Gas Automotive tire Commemorative plaque

CCA 356!? wow, way to skip corners OEM
Does anyone know what the actual CCAs should be? I doubt it's 355...
From what I've researched online, the recommended minimum value can range from just over 500 to over 600 CCA
 
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