I know there are MANY posts about CDL issues because I have read several in search of a solution.
It all started when the invincible Tank, took a dive in a hood high muddy pool and in the middle of which the fuel pump took a dump. 6OO bones later and it was at least running again with the dash full of lights (airbag light still on) and a little rough. I dried out the mass air flow sensor and checked the fluids, replacing most and was running great with 2 MPG improvement (?). But the CDL would not actuate. I took it off road to perform a function test about a dozen times and nothing.
So this is when I consulted Mud and read through most of the CDL post. I followed the trouble shooting tips starting with the wires in the dash and all showed proper function and found that the #2 to #3 was good, but the #2 and/or #3 to the ground was not right. I ended up taking the electric motor out and rebuilding (removing some water that was probably grounding out e-motor). I have a MAN A FRE 3/2 Lift so this required taking off the caster correction bracket, , not fun. After re-build I did a function test on the bench and it worked fine, so I re-installed.
I took to a construction site in the neighborhood to test actuating several times, and still didn’t work. Back in the drive way, I function tested the motor again by:
1) Put the center diff in 4Lo (obviously still not functioning).
2) Un-plugged the connection to CDL Motor.
3) Ran the jumper cables from battery to #2 and #3 and it locked just fine with ABS and CDL lights on in the dash.
4) Plugged the motor back in then put back in 4Hi
5) E-Motor pulled CDL back out into un-locked position.
6) Tried testing in construction zone again and did not work.
I am at a point where I don’t know how to make it work right. I plan to check the #2 and #3 feed wires this afternoon in the driveway, but wanted to see Mud member had any feed back by the time I get back out from underneath the Tank.
Thanks.
It all started when the invincible Tank, took a dive in a hood high muddy pool and in the middle of which the fuel pump took a dump. 6OO bones later and it was at least running again with the dash full of lights (airbag light still on) and a little rough. I dried out the mass air flow sensor and checked the fluids, replacing most and was running great with 2 MPG improvement (?). But the CDL would not actuate. I took it off road to perform a function test about a dozen times and nothing.
So this is when I consulted Mud and read through most of the CDL post. I followed the trouble shooting tips starting with the wires in the dash and all showed proper function and found that the #2 to #3 was good, but the #2 and/or #3 to the ground was not right. I ended up taking the electric motor out and rebuilding (removing some water that was probably grounding out e-motor). I have a MAN A FRE 3/2 Lift so this required taking off the caster correction bracket, , not fun. After re-build I did a function test on the bench and it worked fine, so I re-installed.
I took to a construction site in the neighborhood to test actuating several times, and still didn’t work. Back in the drive way, I function tested the motor again by:
1) Put the center diff in 4Lo (obviously still not functioning).
2) Un-plugged the connection to CDL Motor.
3) Ran the jumper cables from battery to #2 and #3 and it locked just fine with ABS and CDL lights on in the dash.
4) Plugged the motor back in then put back in 4Hi
5) E-Motor pulled CDL back out into un-locked position.
6) Tried testing in construction zone again and did not work.
I am at a point where I don’t know how to make it work right. I plan to check the #2 and #3 feed wires this afternoon in the driveway, but wanted to see Mud member had any feed back by the time I get back out from underneath the Tank.
Thanks.