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Old 10-26-2011, 08:27 PM   #1 (permalink)
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Default WTF? car died and I got code P0700

On my way to work this morning. It's a short drive since I moved so the car isn't really warmed up. I was at a light about 1/2 mile down the hill and when the light turned green the car was stumbling a little and then died. Started up again and it of course had the Check Engine light accompanied by the cruise and sport lights flashing. At work I plugged in my Cobb AP and read the code: P0700 Transmission Control System (MIL Request) Can anyone tell me what this means and somehow tie it together with the reason for it dying on me? I cleared the code and it seems to run and shift just fine.
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Old 10-27-2011, 08:09 AM   #2 (permalink)
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The symptom was transmission-related. The P0700 is a "MIL request" but does not identify the actual cause.

When certain faults are detected in the transmission control area by the transmission control module (TCM or TCU), the module will not only record a transmission trouble code and turn on the Sport light, but also sends a P0700 to the engine control unit (ECU), which turns on the CEL (MIL). Whenever a CEL is triggered the cruise control is automatically disabled, resulting in the flashing CC light.

The stumbling and stalling might have been related to the engine control system going into a "failsafe" mode to protect the transmission, or it's possible that the transmission malfunction caused the engine to stall (as might be the case if the torque converter lock-up clutch engaged prematurely).

I'm not familiar with your Cobb AP, but many scanners/code readers cannot access the TCU to read transmission trouble codes. The P0700 is an ECU code which is readable.
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Old 10-27-2011, 01:26 PM   #3 (permalink)
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That explains why it is listed under ecu codes and not transmission codes. Ssm would be able to see the transmission code.
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Old 10-27-2011, 01:48 PM   #4 (permalink)
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that explains why it is listed under ecu codes and not transmission codes. Ssm would be able to see the transmission code.
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Old 10-27-2011, 02:21 PM   #5 (permalink)
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Okay I'll bite. How do I get Ssm going?
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RalliTEK rear overload springs
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Old 10-27-2011, 04:01 PM   #6 (permalink)
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Okay I'll bite. How do I get Ssm going?
FreeSSM - Complete access to your ECM and TCU
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Old 10-27-2011, 09:20 PM   #7 (permalink)
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Oh boy, I missed that one real bad. FreeSSM, of course.
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Old 10-28-2011, 01:22 PM   #8 (permalink)
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Since you probably dont have a vagcom cable, i could hook up most of my laptop and check it. How far from bothell are you?
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Old 10-29-2011, 04:06 PM   #9 (permalink)
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I live in Renton. That would be awesome and I could buy you a beer. Seeing someone use the vagcom cable and software would probably put me at ease with that system and it might convince me to sell my Cobb AP.

I'll PM you with my details and we can meet up sometime soon.
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Cobb AP (RalliTEK stage 2 map)
Rally Armor flaps
RalliTEK rear overload springs
Cobb down pipe
Goodyear Triple Treads
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Old 10-29-2011, 05:10 PM   #10 (permalink)
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Sounds good. I want to check out your stage 2 setup and overload springs. My mother in law is in town until wednesday. I need an excuse to get away!!!!
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