Quote:
Originally Posted by old_master
At the ECM connectors, check these also:
Battery voltage to ECM circuits:
C1 pin 20 red wire hot at all times
C1 pin 19 pink wire hot in START & RUN
C1 pin 68 pink wire hot in START & RUN
**The two pink wires are different circuits and are fed from different fuses**
ECM grounds, all must be less than 5 ohms to ground:
C1 pin 60 tan with white tracer
C1 pin 21 tan with white tracer
C2 pin 60 black with white tracer
C2 pin 21 black with white tracer
|
Everything checks out correct with what you have listed.
We did hook the scanner to the van,and it still has no comunication.
Is there a certain wire and pin out number at the computer I can check from the OBDII connector to the ECM harness for reisitance to see if there is an open wire?
Any reason why I still would not have any comunication from the ECM other than maybe it's dead?