Visual Inspection; Connector References; Reading Fault Codes - JLG T350 Troubleshooting Manual

INTRODUCTION
A.2 VISUAL INSPECTION
Perform a thorough visual and "hands on" inspection before starting any troubleshooting procedure. You can quickly find
the cause of many problems just by looking.
Has the vehicle 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
• Bent or damaged pins
• Contacts not properly seated in housing
• Bad wire crimps to terminals
A.3 CONNECTOR REFERENCES
Electrical connectors are given a three digit identifier number preceded with "X". See 7.1 Connector Index for a list.
X404.21 refers to terminal 21 (pin and socket) of connector X404.
X404.21.soc refers to the socket side of terminal 21, connector 404.
X404.21.pin refers to the pin side of terminal 21, connector 404.
A.4 READING FAULT CODES
Current and logged system fault codes can be read from the analyzer. Refer to 9.3 Using the Analyzer
User flash codes can be read from flashes of the ground or platform control panel system distress lamp. Refer to A.5 User
Fault Codes.
ADE service flash codes can be read from the green LED on the face of the ground module, see Figure A-2..
A-6
Figure A-2. Ground Module Fault LED
T350 T500J 3121203