9. Miscellaneous
Do not ground the welder to electrical components such as the control
ground or sensors! Improper grounding can cause damage to electrical
components! Clamp the ground cable from the welder to the component
being welded. Place the clamp as close as possible to the weld to reduce
the possibility of damage.
1. Stop the engine. Turn the keyswitch to the OFF position.
2. Disconnect the negative battery cable from the battery.
3. Open any installed battery disconnect switch.
4. Unplug the control system if possible.
5. Connect the welding ground cable as close as possible to the area to be welded.
6. Protect the wiring harness from welding debris and spatter.
7. Use standard welding methods to weld the materials.
9.4 Control System Troubleshooting
Control system does not perform self-test
Possible Cause Possible Remedy
Tripped overcurrent protection
Correct fault, replace or reset overcurrent pro-
tection
Faulty connection to battery
Correct battery connections (see Battery Circuit
Requirements)
Faulty control system Repair or replace control system
Control system performs normal self-test, engine cranks, runs and shuts down
Possible Cause Possible Remedy
Engine Stop LED illuminated
Correct ECU stop condition, use ECU diagnos-
tics
Display does not display data
Possible Cause Possible Remedy
Display lost power
Turn on key, verify display plugged into harness
Engine Source address incorrect Change Engine Address in Configuration
Display Address incorrect Change Display Address to 40 (default)
Display configuration problem Reset display using Restore Defaults
CAN failure Check CAN (see Testing CAN)
ECU not sending data Repair or replace ECU
Display shows Bad or Corrupt Configuration
LOFA document No. 463-3002-59 Page 41
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