Hello All,
I am here trying to get some help on a CDL issue I've been having after doing the 7th pin mod. I've found lots of similar threads, but nothing that describes what I am seeing.
Background -
I did the 7th pin mod following Slee's guide. I pulled a hazard switch out of a parts truck to use, plugged it into the factory harness, and removed the jumper. I then pulled the 10th pin incorrectly from the transmission control relay. This is the blue and black wire instead of the black and blue wire. I repinned it and then pulled the correct wire.
At this point, I tried my new CDL button and got nothing. Immediately before I did the mod, the actuator worked and the CDL locked when shifting the transfer case.
Troubleshooting -
Following the other threads on this forum, I tested a bunch of stuff. I used a desktop power supply at 9v and individually checked each relay on the transmission control module. All good and independently switched.
Using the EWD, I checked continuity from the control module to the actuator. Except for insulation being different colors, all 4 wires at the transfer case actuator had continuity to some pin at the control module.
I used a paper clip and checked the lockup sensor. The dashboard light came on without issue.
Not sure what relay, but when I hit the CDL button, a relay in the control module fires. This also happens if I revert to stock and repin/re-jump the harness and switch to low range.
Any ideas? Am I missing something easy?
I am here trying to get some help on a CDL issue I've been having after doing the 7th pin mod. I've found lots of similar threads, but nothing that describes what I am seeing.
Background -
I did the 7th pin mod following Slee's guide. I pulled a hazard switch out of a parts truck to use, plugged it into the factory harness, and removed the jumper. I then pulled the 10th pin incorrectly from the transmission control relay. This is the blue and black wire instead of the black and blue wire. I repinned it and then pulled the correct wire.
At this point, I tried my new CDL button and got nothing. Immediately before I did the mod, the actuator worked and the CDL locked when shifting the transfer case.
Troubleshooting -
Following the other threads on this forum, I tested a bunch of stuff. I used a desktop power supply at 9v and individually checked each relay on the transmission control module. All good and independently switched.
Using the EWD, I checked continuity from the control module to the actuator. Except for insulation being different colors, all 4 wires at the transfer case actuator had continuity to some pin at the control module.
I used a paper clip and checked the lockup sensor. The dashboard light came on without issue.
Not sure what relay, but when I hit the CDL button, a relay in the control module fires. This also happens if I revert to stock and repin/re-jump the harness and switch to low range.
Any ideas? Am I missing something easy?
