CTS2 and AE Time Out

rockycreek

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I've been searching like crazy and haven't found an answer to this. When scanning with my CTS2 or AE, it will read just fine, but after some amount of time it stops reading. It's like the PCM just times out. If I shut the truck off for a few seconds and start at back up it will work fine again for awhile.

I had the same exact problem in my last OBS and ended up replacing the PCM to fix the problem. Just trying to find out if there is another way to solve it...

Truck is a 96 model with PCM code NAW4
 

rockycreek

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Macon, GA
Any body else seen this issue? Maybe just a quirk of the older PCMs.

I've also noticed that when I first crank the truck up for the day and go drive, the CTS2 will stay on and reading. If I go somewhere, shut the truck off for 15-20 minutes and then leave, the CTS2 can't read the PCM and shuts off after about a minute. If that happens and I stop, cut the truck off for 10 seconds, turn it back on and keep driving, it will run for awhile again.
 

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