Near Intersection of I-35 & I-90 Southern Mn. | Here's what I would do. Reinstall the 661. If both the 16 and 14 pin connectors are there plug them both in. Try the 661 again to check if it works properly. If so remove the 14 pin connector and try again. If it quits working then the PWM being used is in the 14 pin connector which apparently you do not have on the adapter cable. If it continues to work with the 14 pin connector disconnected the system must be using the pins in the 16 pin connector. This should help you decide if your adapter is correct.
With the 661 set with PWM output, it sends the PWM output on one of the normal control pins 3 or 4 AND the high current output (pin 6?) in the 14 pin connector. |