So I just finished dropping an 01 engine in a 98.5 truck, dealt with the cmp signal error. But now my abs light won't go out. No abs related codes, no CELs and I can't get the ABS, motor to actuate via the scanner (modus from snap on). What am I missing? 

Can you give us an exact list of the stuff you swapped so we know what modules, wiring, sensors, etc your truck has.  

Most likely data crash on the CCD network being the mismatched modules. 

 

1 hour ago, Me78569 said:

Can you give us an exact list of the stuff you swapped so we know what modules, wiring, sensors, etc your truck has.  

 

01 engine, 01 ecm, 98.5 harness with 01 pcm (manual transmission) 01 MAP sensor, custom extension harness for the crank sensor to relocate to the timing case (yes I have to correct reluctor wheel on the cam). All three rpm data sources read nominally the same. CCD buss checks out, I couldn't get the ABS module to activate via scanner, I swapped in the 98.5 ecm and ABS light is still on with no codes and still won't trigger with scan tool. 

Try trading for a 2001 harness? I know there are a few things different from year to year. 

cant swap an 01 harness without swapping the ENTIRE engine compartment and cab harness, the early 98.5 to 2000 harness ties the PCM into the harness differently.

 

Well turns out the powersteering fluid was low, abs light went out after bleeding the powersteering.

2 hours ago, syndicateshop said:

Well turns out the powersteering fluid was low, abs light went out after bleeding the powersteering.

Might have to try this tomorrow and see if it turns mine out. I have had no signs of it being low.