I'm getting code 54. I've swapped in a brand new Mopar hep and the van still has drivability issues.
What should the harness to hep voltages be?
All measurements made with connector keyway facing up. I get the following:
Grey connector:
Left - bottom ~9V
Left - right ~9V
Black connector
Left - bottom ~9V
Left- right ~4.5V <--- is this a problem?