D5G tracks will not move with flashing code 168 ???

[Richie Nell]

414 perhaps

 

[Richie Nell]

614

 

[Richie Nell]

Can you identify the wire number on the Pink wire in the front left of your 1st photo. I think I can see "41" but the 3rd number is covered by dirt. With the wire number the connector, and which circuit it feeds, can be traced.

All three here

 

[Nige]

Found it. what I thought was a Pink wire is actually listed as Purple.
CONN 23. It's part of the circuit for the heater/aircon blower motor.
The 124 Green wire is live all the time the key switch is in the ON position. Check for a blown blower fuse.

 

[Richie Nell]

All fuses on panel look good. Blower motor and A/C work

 

[Nige]

All fuses on panel look good. Blower motor and A/C work

OK, so it looks as though it didn't blow the fuse which is somewhat strange but hey ho, back to tracking down the 8v sensor supply issue issue

 

[Richie Nell]

OK, so it looks as though it didn't blow the fuse which is somewhat strange but hey ho, back to tracking down the 8v sensor supply issue issue

I guess that means it is somewhere in the wiring harness. And so much of it is not in halfway reasonable sight.

 

[Nige]

I guess that means it is somewhere in the wiring harness. And so much of it is not in halfway reasonable sight.

From my way of thinking I'd like to see the resistance readings confirmed using a different meter before condemning the harness.

 

[Richie Nell]

Ohms set at 200k
1-69…. -75.6
1/44…. -76ish
31-44….OL
39-44….OL
31-69….-49
39-69….-49

 

[Nige]

Try setting the ohms switch at 200 (instead of 200k) and see what results it gives.

 

[Richie Nell]

All OL

 

[Nige]

In that case they are all showing open circuit, therefore greater than 5000 ohms, so they all class as "OK" on the resistance test.

 

[Richie Nell]

In that case they are all showing open circuit, therefore greater than 5000 ohms, so they all class as "OK" on the resistance test.

“….and replace ECM if can’t find problem.” Crazy crazy how this dozer just decided to throw codes and not move.

 

[Nige]

“….and replace ECM if can’t find problem.”

Which is why IMHO you really needs a second hands-on opinion before shelling out for a replacement ECM that is probably priced somewhere North of $2k, plus labour to install.

Crazy crazy how this dozer just decided to throw codes and not move.

Any welding repairs been done on it recently.?

 

[Richie Nell]

Which is why IMHO you really needs a second hands-on opinion before shelling out for a replacement ECM that is probably priced somewhere North of $2k, plus labour to install.

Any welding repairs been done on it recently.?

Nope. Only thing is a day before this happened I had a Cat mechanic replace the fuel pump and blow out fuel line to tank. Ran good for 30 minutes or so then started stalling out again like before line was cleaned out.Then next morning would not move. Makes me think a mouse chewed the wrong spot to have system be affected so quickly and overnight.