Page | 9
Display Does Not Boot-Continued
6. If the PMG LED is not illuminated, then the issue is with the PMG or its power connections
a. Disconnect the PMG Main Cable and verify the pins match the diagram below
i.
Pin 5 should read 11-24 volts
ii.
Pin 4 should read less than 10 ohms to a known-good ground source
iii.
Pin 3 should read 11-24 volts
iv.
If pin 3, 4, and 5 match this pinout, try an alternate PMG. If that works, RMA the original as “No Power”
v.
If the pins do not checkout, locate the Power Assembly, which is in the dash and normally near the fuse
panel
1.
Verify the “OBC Constant” and “OBC Ignition” fuses are present and intact
2. Disconnect and test the 4-Pin PMG Power connection with a voltmeter, verifying RED=12-24 volt
constant power, WHITE=12-24 volt Ignition Sense, and BLACK=Ground. Always test the Ground
with the ignition ON to make sure the source isn’t floating: a floating ground will show a moderate
resistance (20-50 ohms) that will slowly increase
3. If something is missing, test at the vehicle connection point to determine if the failure is in the
assembly or with the vehicle connection
4.
If you have the proper Power/Ignition/Ground at the 4-Pin, visually inspect the PMG Main cable for
damage, particularly near wear points. Replace the cable if needed.
