This is how your cables should be wired (using your colors when possible):
Yellow Cable --- 36v (forward power)
Red Cable --- 18v (reverse power)
Orange Cable --- Motor S1
Blue Cable --- Motor A1
White Cable --- Solenoid Passenger Side.
Pack Negative --- Motor S2
Solenoid Driver side --- Motor A2
If that is wired correctly, make sure all solenoids are closing.
If the solenoids are closing, make sure the copper bussbar that connects all of the sides of the solenoids is making good connection.
You can test the resistance between the first and the last solenoid post on the buss-bar side, it should be
0Ω.