Extruder 2 of reprappro tricolour not responding to input

I am having issues getting the motor of my second extruder to respond to any input, whether it is from the extrude command coming from a pronterface command or actual g-code that has been exported from a slic3r build. I've tried everything I can think of. The firmware is all up to date as far as I know (it is an older model) Marlin 1.0.8 for the main board and Slave 1.2 for the slave board. When I print with the 1st extruder everything works fine, the head heats up fine, the motor runs fine, no problems. Then I switch to the second extruder using a T1 command and the system puts the first hotend at the resting temperature and activates the second hot end and I can heat it up to temp no problem. I load up a new gcode and pronterface tells me the print is going to use 17mm of filament and everything looks fine. But when I go to print the head moves around normally but the extruder does nothing, no clicking or anything, just dead. Checked the connections and they are fine, tried switching the 2nd and 3rd motor to see if it was a dud motor but noting still (I guess they could both be dud motors but I doubt it). The first extruder isn't trying to move during the print so it seems to me the interface is trying to talk to the second extruder but somewhere, something is going on and the motor is not responding to the extrude g-code. There was 2.5 volts dropped across the motor when the part was trying to print, not sure if that helps at all. Below is what my board gives me when I do a reset:

Printer is now online.
echo:Marlin 1.0.8 RRP
echo: Last Updated: 2014-06-02 | Author: RepRapPro - AB
echo: Free Memory: 10882  PlannerBufferBytes: 1232
Slave init. Please wait ...
.Slave ready
 Firmware version: V10, EEPROM version: V10
ok p:12.00 i:2.20 d:80.00 w:125
echo: Stored settings retreived:
echo: Steps per unit:
echo:  M92 X87.49 Y87.49 Z4000.00 E660.00
echo:Maximum feedrates (mm/s):
echo:  M203 X300.00 Y300.00 Z3.00 E45.00
echo:Maximum Acceleration (mm/s2):
echo:  M201 X800 Y800 Z30 E250
echo:Acceleration: S=acceleration, T=retract acceleration
echo:  M204 S1000.00 T1000.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s),  Z=maximum Z jerk (mm/s)
echo:  M205 S0.00 T0.00 B20000 X15.00 Z0.40 E15.00
echo:  M206 X0.00 Y0.00 Z0.00
echo: PID settings:
echo:   M301 H1 P12.00 I2.20 D80.00 W125.00
   M301 H2 P12.00 I2.20 D80.00 W125.00
   M301 H3 P12.00 I2.20 D80.00 W125.00
 FPU Enabled no
 Axis 0 max: 210.00 Axis 1 max: 210.00 Axis 2 max: 140.00
 Bed/extruder 0 beta: 3988.00 resistor: 4700.00 thermistor: 10000.00 inf: 0.02
 Bed/extruder 1 beta: 4138.00 resistor: 4700.00 thermistor: 99999.91 inf: 0.09
 Bed/extruder 2 beta: 4138.00 resistor: 4700.00 thermistor: 95891.63 inf: 0.09
 Bed/extruder 3 beta: 4138.00 resistor: 4700.00 thermistor: 95891.63 inf: 0.09
 Extruder: 0 dX: 0.00 dY: 0.00 dZ: 0.00 standby temp: 30.00 operating temp: 100.00
 Extruder: 1 dX: 0.00 dY: 0.00 dZ: 0.00 standby temp: 30.00 operating temp: 100.00
 Extruder: 2 dX: 0.00 dY: 0.00 dZ: 0.00 standby temp: 0.00 operating temp: 0.00
transform correction not enabledecho: SD init fail

Any Ideas? Thanks for any help

Edited 2 time(s). Last edit at 01/05/2017 03:18PM by jblonigan.

Quote

Extruder: 0 dX: 0.00 dY: 0.00 dZ: 0.00 standby temp: 30.00 operating temp: 100.00
Extruder: 1 dX: 0.00 dY: 0.00 dZ: 0.00 standby temp: 30.00 operating temp: 100.00

I hope, you didn't try to extrude at 100°C? The firmware is often set to extrusion_minTemp = 170°C...

The colors of the stepper wires are not always following the standard ( there is no NORM to it unfortunately )
Can you test the functionality of each stepper and driver, by replacing them?

It would also be good to test the Steppers with a simple routine like the RAMPSTestcode
But that requires to flash Marlin again afterwards, so be sure you have the last known_to_work version at hand.

Edited 1 time(s). Last edit at 01/06/2017 03:59AM by o_lampe.

So I went ahead and wired the second extruder into the main marlin board where the first extruder is normally connected. Fired up pronterface and selected the first tool and hit the reverse command and the second motor did exactly what I told it to. So it is definitely not the motors or the wire coloring, it looks like the proper connections are there I think. Something is going on with the signal output to the slave board, it would seem specifically to the x-motor since it can heat the tool just fine.

Do you think this RAMPSTestcode would still help with figuring out what is going on? What information would it give me? Would I just upload it it to my slave board and run it then re-upload the slave firmware when I was finished.

Thanks for the help!

(P.S. I am not extruding at 100 C, it's just a standby temp the tool heats to when I select it)