Visual Inspection; Reading Fault Codes - JLG 1250AJP Troubleshooting Manual

INTRODUCTION
A.2 VISUAL INSPECTION
Perform a thorough visual and "hands on" inspection before starting any troubleshooting procedure. Also, perform a visual
inspection at every connector, sensor, hose, harness, etc. opened or accessed during the procedure. You can quickly find
the cause of many problems just by looking.
Has the machine been serviced recently? Check that everything has been reconnected properly.
Inspect Hoses for:
• Correct routing
• Pinches and kinks
• Splits, cuts, or breaks.
Inspect Wiring for:
• Contact with sharp edges
• Contact with hot surfaces
• Pinched, burned or chafed insulation
• Proper routing and connections
Check Sensors and Actuators for Damage.
Check Electrical Connectors for:
• Corrosion on pins
• Moisture in the housing or on the contacts
• Bent or damaged pins
• Contacts not properly seated in housing
• Bad wire crimps to terminals
A.3 READING FAULT CODES
Current and logged system fault codes and ADE service flash codes can be read from the analyzer. Refer to 4.2 Using the
Analyzer on Pg. 261. Fault logs are separated by POWER CYCLE messages. In Troubleshooting, you may be asked to see
all of the currently active faults. This simply means all of the faults since the latest power cycle. Scroll through the chronolog-
ical faults on the analyzer, listing all the faults until the first "POWER CYCLE" message. Troubleshoot each of these items
separately unless instructed otherwise.
ADE service flash codes can also be read from the green LED on the face of the ground module or the system distress lamp
in the platform console, see Figure A-2. Ground Module and Platform Fault (System Distress) Lights on Pg. 4. Use the table
in A.8 Service Fault Code Cross References on Pg. 9 to find possible faults based on the flashed code.
Figure A-2. Ground Module and Platform Fault (System Distress) Lights
A-4
FAULT
CODE
LIGHT
1705744 A
J1
J2
1705745 B
1705171 A
1250AJP
J4
J3
1702938 1705170 A
3128411