JLG 1250AJP Troubleshooting Manual page 176

SECTION 1 - FAULT DICTIONARY AND SELECTED TROUBLESHOOTING
Note Pretest Instructions
1.378.3
1.378.4
1-176
Test
Is the signal wire good? Check the signal wire
between the component and the signal input/
output on the module. Signal lists start with
section 2.2 BLAM Module Connector Pinouts
on Pg. 215. The information is also on the
schematics. There should only be continuity
between the component and the proper pin on
the module in accordance with the schematic.
There should not be shorts between the wire
and battery + or - terminals, etc. Isolate har-
ness sections that may have a problem by dis-
connecting connectors as needed. Be sure to
include checking for pins that are damaged,
loose or pushed out of the connector.
Are the other wires good? If it does not go to
ground, check other wire from the component
in question connection to the nearest major
component. It should have continuity to the
module, swivel, bus or other connector in
accordance with the schematic.
1250AJP
Result Corrective Action
Pass Go to step 1.378.4
Fail Repair as needed
Pass Recheck measurements or try troubleshooting a
different fault. If the component and wiring are
good, reprogram/replace the associated module.
Fail Repair as needed
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