Where are the ground wires on a WS 3406?
Where are the ground wires on a WS 3406?
You also have two seperate ground wires on pins 65 and 67. Again this wire usually leaves the battery box as a single wire splitting into two at the ECM. I’d say the problem is on one of the wires leaving the battery box and before it splits into the seperate pin locations. I had the same issue this winter on my ’98 WS 3406.
What happens when I lose power on my ECM?
If you lose power at both these pins at the same time the ECM will never show a fault code. You also have two seperate ground wires on pins 65 and 67. Again this wire usually leaves the battery box as a single wire splitting into two at the ECM.
Why does my ECM keep blowing out on my truck?
Driver went in pick up the truck it was running fine, after he was hooked to the trailer, truck stalled again, they took him back in the shop and came back telling me that ECM is blown because of corroded wire. my question is, why would truck start at and runs fine for the first time when he just fixed it with fuses and partial power wire to ECM.
You also have two seperate ground wires on pins 65 and 67. Again this wire usually leaves the battery box as a single wire splitting into two at the ECM. I’d say the problem is on one of the wires leaving the battery box and before it splits into the seperate pin locations. I had the same issue this winter on my ’98 WS 3406.
How to diagnose power loss in an ECM?
It helps to further diagnose power problems. Most ECMs have more than one power wire. You may just have to run the engine and then grab and start shaking the wire harnesses to the ECM to see if you can induce the problem and find the problem area.
Driver went in pick up the truck it was running fine, after he was hooked to the trailer, truck stalled again, they took him back in the shop and came back telling me that ECM is blown because of corroded wire. my question is, why would truck start at and runs fine for the first time when he just fixed it with fuses and partial power wire to ECM.
