Nige
Senior Member
What happens when you touch the two probes on the ends of the red/black wires together.?
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D5G tracks will not move with flashing code 168 ???
- Thread starter Richie Nell
- Start date
Nige
Senior Member
That is a circuit breaker (well actually they both are) and to the best of my knowledge the blue buttons should stay IN, not out. The button is supposed to pop out when the circuit breaker is overloaded. You press the button inwards to reset the breaker.
Richie Nell
Well-Known Member
Ohms reads 0.06
The right blue button has spring action and will not stay in. Only when pressed. The left is stuck sitting awkward trying to get it out now.
The right blue button has spring action and will not stay in. Only when pressed. The left is stuck sitting awkward trying to get it out now.
Nige
Senior Member
If you have power off while trying to push it in it appears as though the RH breaker is popped and will not reset.
0.06 ohms, that sounds about right. Try unplugging ECM connector J1 and run a wire from Pin 70 (which is the other end of wire J764) down to the sensor connector. Then measure the resistance between Pin 2 of the machine side of the sensor connector and your temporary wire. You should get a reading not much more than the 0.06 that you got when you touched the probes together.
Nige
Senior Member
Scratch that. One is the main power circuit breaker, the other is for the alternator. Provided the electrical systems on the machine are all working and the alternator is charging there should be no problem with either of them, despite the fact that the one on the right appears to be popped.
Richie Nell
Well-Known Member
I just found this exposed wire from rubbing aluminum band on hydraulic hose. Yellow wire under red rubber cap behind hydraulic filter and goes who knows where.
Nige
Senior Member
Interesting information from the operating manual for your multimeter............
If the resistance value exceeds the selected range value, a "1" will be shown on the display. The measurement range should be changed to a higher one.
So try cranking the dial on your meter right up to the "2M" setting and re-measure. I suspect the results will be the same and it will still display a "1" but just want to confirm.
If the resistance value exceeds the selected range value, a "1" will be shown on the display. The measurement range should be changed to a higher one.
So try cranking the dial on your meter right up to the "2M" setting and re-measure. I suspect the results will be the same and it will still display a "1" but just want to confirm.
Nige
Senior Member
That's wire to the hydraulic oil temperature sender. Obviously the damage needs repairing but not associated with your current problem.
Richie Nell
Well-Known Member
Same ohm reading when touch anything on machine I can reach other than the very edge of this box. Then it reads like .003 ohm
Nige
Senior Member
Looks like there is a bit of bare metal on that corner which would give somewhat of a connection to machine frame ground. Was the other probe of the meter in Pin #2 on the machine side of the speed sensor connector (J764 Brown) when you got that .003 reading.?
Richie Nell
Well-Known Member
Pin was on brown wire at connector harness.
Leaving dozer at least for now.
Leaving dozer at least for now.
Nige
Senior Member
OK, so the sensor ground (Step 1) is good.
Step 2 you previously measured 4.3v, which is low. I know it's difficult to get measurements because the sockets are in the connector are so small, but try sticking something like a paperclip in each of the contacts 1 & 2 of the connector.
Richie Nell
Well-Known Member
Ok
Richie Nell
Well-Known Member
Nige
Senior Member
Definitely below what is acceptable.
You need to go back to Post #30 on Page 2 and start doing the troubleshooting for the CID0041 Code for the 8v supply, because that's what Step 2 is looking for, 8.0 +/- 1.5v.
You need to go back to Post #30 on Page 2 and start doing the troubleshooting for the CID0041 Code for the 8v supply, because that's what Step 2 is looking for, 8.0 +/- 1.5v.
Richie Nell
Well-Known Member
Nige
Senior Member
No. The ECM connectors are 70-pins and are located right on the ECM itself. Refer back to the pdf document I posted earlier of the platform wiring parts
Richie Nell
Well-Known Member
Richie Nell
Well-Known Member
“C. Perform the following measurement at the connectors of the ECM. Measure the resistance between the contacts for the +battery and the contact for the sensor supply voltage.”
So at these connectors, one is +battery and one sensor supply? Any idea which ones?
And this is one of two
So at these connectors, one is +battery and one sensor supply? Any idea which ones?
And this is one of two
Nige
Senior Member
I may be wrong but didn’t I send you an electrical schematic drawing.?
Batt+ is on three Pins on connector J1 of the ECM - 1, 31, & 39. Wires are 308 Yellow, 126 Pink, & 126 Pink respectively.
Sensor supply voltage is also on J1. Pins 44 (wire 497 Blue) & 69 (709 Orange).
If you look on those two big connectors you can find the Pin Numbers are marked on them. They are right there in your photo. I always identify J1 & J2 by the different wire colours/numbers going into the different pins. This is especially true with your ECM which is installed upside down from the way it would be on most machines.
The connector in your photo is J1 because it has wires in Pins 58-60, nothing in 61-66, then wires in 67-70. See snip below from schematic.
If you have some aerosol electrical contact cleaner give both of those big connectors a good dose. They look as though there has been damp in them at some point in time. Also spray the ECM pins. It can't do any harm.