In order for this 2000 Dodge Grand Caravan 3.3L to pass smog, it must communicate w/obd II. when a scantool is hooked up to the DLC, it prompts, no communication w/ ecm. where can i find the information to diagnose this situation? I have tried Mitchell, however, the diagnostic steps given have passed. Ive got 2.5 volts to CCD bus + and -. both grounds at DLC are less than 5 ohms. I got power, where can i find more info. on how to accomplish this diagnosing procedure?
Why can't i get comm.w/pcm on A 2000 Dodge Grand Caravan 3.3 L. w/any scantool? on 2000 Dodge Grand Caravan
by Ohmario in Porterville, CA on April 22, 2013
ANSWER by globalhelper on April 22, 2013
ck fuses to start with
ANSWER by pushrod on April 22, 2013
Maybe scanner problem