89 300TE tail light voltage
 

Need a little help on this one, no taillights on either side, all other lights work as they should. The pin at the wiring connection on both right and left for the tail lights is only seeing a little over 1.6 volts, 14V running on all others.
Fuse 3 and 8 are 14V running. With power probe I can light all the tail lights.
1. Suggestions
2. Location of the main rear harness connection?

Thanking you in advance for your much needed help on this one,