P0740
11-26-2011, 12:00 PM
#1
Staging Lane
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Join Date: Jan 2010
Location: Grayslake, IL
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P0740 Hey guys, I'm having a bit of an issue with my trans. I swapped a 4.8/4l60e combo into my s10 back in august and it has been driving great until recently. I now I have an intermittent CEL with a code P0740. While the light is illuminated, the tcc will not engage. I had my laptop hooked up to it while driving, I cleared the code and right away the tcc locked up.
I tested the brake switch circuit at the pcm. At idle I have 14v, drops to 0v when I depress the brake pedal. I haven't tested the solenoid yet, but I have a feeling its fine. Does anyone have an idea what might be causing this? Any known common failure points in the harness or something like that? Any help would be appreciated.
02 F-body harness
02 Ls1 camaro transmission
Stock stall converter
I tested the brake switch circuit at the pcm. At idle I have 14v, drops to 0v when I depress the brake pedal. I haven't tested the solenoid yet, but I have a feeling its fine. Does anyone have an idea what might be causing this? Any known common failure points in the harness or something like that? Any help would be appreciated.
02 F-body harness
02 Ls1 camaro transmission
Stock stall converter
