JLG 1230ES Service Manual - Manual (Page 133)

SECTION 8 - DIAGNOSTIC TROUBLE CODES
3121222 – JLG Lift – 8-1
SECTION 8. DIAGNOSTIC TROUBLE CODES
8.1 INTRODUCTION
This section provides a reference for Diagnostic Trouble Codes (DTC) read from the Multifunction Digital Indicator (MDI). This
section should only be used for machines equipped with a SEVCON Power Module-(ground board software version P1.13 or
higher) or ZAPI Power Module-(ground board software version P1.0 or higher). For more information on any sensors or indi-
cators, refer to the appropriate section for the machine area. Many of the checks below require configuring and using a mul-
timeter. Refer to Section 7: General Electrical Information & Schematics for multimeter basics. DTCs are sorted in groups by
the first two digits, which is also the system distress lamp flash code. To troubleshoot multiple DTCs, start with the DTC with
the higher first two digits. The machine is powered by four 6 Volt batteries in series, providing a nominal 24 Volts to the con-
trol system. Some procedures below refer to this nominal voltage (VMN) as 24V. Actual voltage measurements may differ
based on the charge of the batteries. If a correction is made during a check, conclude the check by cycling the machine
power, using the emergency stop switch. It may also be helpful to run a system test, ANALYZER -> SYSTEM TEST for inter-
mittent or difficult problems.
8.2 X-CONNECTOR REFERENCES
Throughout the following DTC troubleshooting procedures, electrical connectors are given a three digit identifier number pre-
ceded with an “X” for identifying and locating the specific connector on the machine.
See Section 9.8, X-CONNECTOR ID INDEX for description of "X" connectors and Figure 9-12. on page 9-20, and Figure 9-13.
on page 9-21 for location of "X" connectors on the machine.
Example of "X" connector usage nomenclature:
[X006.21] refers to terminal 21 (pin and socket) of connector X006.
[X006.21.soc] refers to the socket side of terminal 21, connector X006.
[X006.21.pin] refers to the pin side of terminal 21, connector X006.
8.3 DTC INDEX
0-0
001 EVERYTHING OK ........................................................................................................................................................... 6-3
002 GROUND MODE OK ...................................................................................................................................................... 6-3
003 ALARM SOUNDING - TILTED & ABOVE ELEVATION .................................................................................................. 6-3
004 DRIVING AT CUTBACK - ABOVE ELEVATION ............................................................................................................. 6-3
005 DRIVE & LIFT UP PREVENTED - TILTED & ELEVATED ............................................................................................... 6-4
006 LIFT UP PREVENTED - MAX HEIGHT ZONE A ............................................................................................................. 6-4
007 DRIVING AT CUTBACK - POTHOLE STILL ENGAGED ................................................................................................ 6-4
008 FUNCTIONS LOCKED OUT - SYSTEM POWERED DOWN ......................................................................................... 6-4
009 DRIVE PREVENTED - ELEVATED ABOVE DRIVE CUTOUT HEIGHT .......................................................................... 6-4
2-1
211 POWER CYCLE ............................................................................................................................................................. 6-4
212 KEYSWITCH FAULTY .................................................................................................................................................... 6-5
2-2
221 FUNCTION PROBLEM - HORN PERMANENTLY SELECTED ...................................................................................... 6-5
222 FUNCTION PROBLEM - INDOOR / OUTDOOR PERMANENTLY SELECTED ............................................................. 6-5
223 FUNCTION PROBLEM - DRIVE & LIFT ACTIVE TOGETHER ....................................................................................... 6-5
224 FUNCTION PROBLEM - STEER LEFT PERMANENTLY SELECTED ............................................................................ 6-5
225 FUNCTION PROBLEM - STEER RIGHT PERMANENTLY SELECTED ......................................................................... 6-5
226 ACCELERATOR FAULTY - WIPER OUT OF RANGE .................................................................................................... 6-5
227 STEER SWITCHES FAULTY .......................................................................................................................................... 6-6
228 FUNCTION LOCKED OUT - ACCELERATOR NOT CENTERED ................................................................................... 6-6
229 FUNCTION PROBLEM - TRIGGER PERMANENTLY CLOSED ..................................................................................... 6-6
2210 TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL ................................................................................................ 6-6
2232 FUNCTION PROBLEM - DRIVE & LIFT BOTH OPEN .................................................................................................. 6-6
2-3
231 FUNCTION PROBLEM - LIFT PERMANENTLY SELECTED ......................................................................................... 6-6