986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - P0740 error, poor shifting when cold, no speedo!

Jinster · 02-20-2005, 11:11 PM

Thanks for your reply, Sir.Rhosisoftheliver.

My OBD2 scanner doesn't give ABS codes. It only gives P codes (DTC, Mode $03) and some "non-uniform core" codes (Mode $07).

The P0740 is all I get at the moment.

I was told that there are 4 speed sensors, one in each wheel. And they all go to the ABS controller which monitors the 4 sensors for consistency.

I have no speed signal visible on the dash at the moment.

I don't think my scanner can read individual speed sensor actual voltage.

Is the solenoid accessible from just under the car or do I have to take apart the tranny? I will try to unscrew/unplug it if it's easily accessible.

02-20-2005, 11:11 PM	#3
Jinster Registered User Join Date: Apr 2004 Posts: 89	Thanks for your reply, Sir.Rhosisoftheliver. My OBD2 scanner doesn't give ABS codes. It only gives P codes (DTC, Mode $03) and some "non-uniform core" codes (Mode $07). The P0740 is all I get at the moment. I was told that there are 4 speed sensors, one in each wheel. And they all go to the ABS controller which monitors the 4 sensors for consistency. I have no speed signal visible on the dash at the moment. I don't think my scanner can read individual speed sensor actual voltage. Is the solenoid accessible from just under the car or do I have to take apart the tranny? I will try to unscrew/unplug it if it's easily accessible.