Hi ,
Still searching for shorted ignition wire. Have disconnected several harness plugs but no luck. I have narrowed it down though.
To recap, The ignition wire is shorted from the key switch right through to the engine. We disconnected the wire on the key switch and starter solenoid ,(it was shorted out there too) and we put a jumper wire from battery to solenoid, manually closed solenoid on fuel pump and machine started but would not move in forward or reverse. It was suggested that there must be power from this same ignition wire that powers the forward and reverse relay.
In seaching for the short we found that when we disconnected the main harness by the loader control the wire from there back to the key switch was not grounded. When we reconnected it , the ignition wire was grounded out again. We moved along to the next main harness junction on the firewall below the steering wheel. Now the wire from the starter solenoid was no longer grounded. Therefore we thought the ground must be in a relay like maybe from the transmission shifter. We pulled all the relays and they looked ok. If there was a short in the wire after a relay, wouldn't that cause a relay to blow or could it maybe cause a relay to hold closed, thereby continuing to short out the entire ignition wire?
Any suggestions appreciated.
Still searching for shorted ignition wire. Have disconnected several harness plugs but no luck. I have narrowed it down though.
To recap, The ignition wire is shorted from the key switch right through to the engine. We disconnected the wire on the key switch and starter solenoid ,(it was shorted out there too) and we put a jumper wire from battery to solenoid, manually closed solenoid on fuel pump and machine started but would not move in forward or reverse. It was suggested that there must be power from this same ignition wire that powers the forward and reverse relay.
In seaching for the short we found that when we disconnected the main harness by the loader control the wire from there back to the key switch was not grounded. When we reconnected it , the ignition wire was grounded out again. We moved along to the next main harness junction on the firewall below the steering wheel. Now the wire from the starter solenoid was no longer grounded. Therefore we thought the ground must be in a relay like maybe from the transmission shifter. We pulled all the relays and they looked ok. If there was a short in the wire after a relay, wouldn't that cause a relay to blow or could it maybe cause a relay to hold closed, thereby continuing to short out the entire ignition wire?
Any suggestions appreciated.
Case 580 Super M Ignition Short update
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