anyone have a wiring diagram with the stuff that involves these systems? I put the new motor in last night and I'm throwing these codes, I have no TC. both speed sensors are hooked up, and so is the ABS...maybe I missed a ground somewhere? diagrams anyone?

 

I also am interested in your problem....My engine was recently installed, and i have issues...But, the 'service active handling' is showing on DIC , but the traction control works, and i can turn it off, but can NOT put into comp mode...Where do you locate the sensors? thanks

 

It isn't just one wiring diagram. There are several. There are 4 speed sensors and being hooked up doesn't mean there isn't a problem with the harness going to the EBCM. Display the codes on the DIC (see post below for how to) and post what you see here that will help determine what your problem is.

Bill

 

From your description it sounds like there isn't any problem with your sensors. The TC wouldn't work without the sensors all working. You probably can get ABS action by slamming on the brakes.

Again display the codes on the DIC and post here.

To enter the Diagnostic Display function perform the following steps:

1. Turn ON the ignition switch, with the engine OFF.
2. Press the RESET button to acknowledge any warning messages present.
3. Press the OPTIONS button on the Driver Information Center (DIC) and hold.
4. While holding the OPTIONS button press the FUEL button 4 times within a 5 second period.
System will first enter automatic display mode followed by the manual display mode.

The manual mode will automatically be entered after the automatic DTC display sequence is complete, or can be entered at any time during the automatic mode by pressing any button on the DIC except the E/M (E/M button is used to exit the DIAGNOSTIC mode at any time). When the manual mode is selected, the IPC will display the MANUAL DIAGNOSTICS mode message for 2 seconds, or until any button on the DIC except the E/M is pressed. After the MANUAL DIAGNOSTICS mode message is displayed, the IPC will display the first system abbreviation and quantity of codes stored for that system, then the IPC will wait for further instructions. The buttons on the DIC provide the following functions when operating the on-board diagnostic feature in the manual mode:

DIC Button Functions

1. FUEL Previous DTC
2. GAGES Next DTC
3. TRIP Previous System
4. OPTIONS Next System
5. E/M Exit Diagnostics
RESET Clear DTCs


Bill

 

Gee, I thought as with my C5, that the TCS, active handling, etc lights are supposed to come on as soon as you look at the car!!

 

Knowing the codes will help isolate what part of the wiring is having issues. For example wheel speed codes, EBCM codes, steering wheel codes, etc.

You should not have disturbed any grounds that effect the TCS/AH systems, they are pretty much tied to the two in the front of engine bay.

Check the wiring harness from the trans, it has the front wheel speed sensors in it as well. It wraps around the bell housing and then along the drivers side of the block to the steering and each front wheel.

Knowing how you put the engine in would help to, dropping it in from the top you most likely disturbed less wiring, going in from the bottom you may have undone the trans harness etc.

Lastly, the year of your Vette is important in getting the right diagrams for the AH/TCS/ABS system.

 

never gonna believe this, but i bleed the brakes tonight and added fluid.......went away!