CONNECT PIN #A TO 12 OR 24 VOLTS DC.
CONNECT PIN #B TO GROUND.
CONNECT PIN #C TO THE RED OIL PRESSURE SENDER LEAD.
CONNECT PIN #D TO THE GREEN OIL PRESSURE SENDER LEAD.
CONNECT PIN #2 TO ONE OF THE TEMP SENDER LEADS.
CONNECT THE OTHER TEMP SENDER LEAD TO THE SAME GROUND POINT AS THE GAUGE GROUND.
NOTE! CONNECTING THE TEMP SENDER GROUND TO THE SAME GROUND POINT AS THE GAUGE WILL REDUCE THE GROUND ERROR WITH HEAVY LOADS.