Section 6 - Diagnostic Trouble Codes; Introduction; Dtc Index - Oshkosh JLG 1930ES Service Maintenance Manual

6.1 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 MDI and 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 the MDI or any sensors or indicators, refer to the appropriate section for the machine area.
Many of the checks below require configuring and using a multimeter. Refer to Section 7: General Electrical Informa-
tion & 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 control system. Some pro-
cedures 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
intermittent or difficult problems.

6.2 DTC INDEX

Error
Error (Displayed on MDI)
0-0
001 EVERYTHING OK
002 GROUND MODE OK
003 ALARM SOUNDING - TILTED & ABOVE ELEVATION
004 DRIVING AT CUTBACK - ABOVE ELEVATION
005 DRIVE & LIFT UP PREVENTED - TILTED & ELEVATED
006 LIFT UP PREVENTED - MAX HEIGHT ZONE A
007 DRIVING AT CUTBACK - POTHOLE STILL ENGAGED
008 FUNCTIONS LOCKED OUT - SYSTEM POWERED DOWN
009 DRIVE PREVENTED - ELEVATED ABOVE DRIVE CUTOUT HEIGHT
2-1
211 POWER CYCLE
....................................................................................................................................................................................................................6-6
212 KEYSWITCH FAULTY
2-2
221 FUNCTION PROBLEM - HORN PERMANENTLY SELECTED
222 FUNCTION PROBLEM - INDOOR / OUTDOOR PERMANENTLY SELECTED
223 FUNCTION PROBLEM - DRIVE & LIFT ACTIVE TOGETHER
224 FUNCTION PROBLEM - STEER LEFT PERMANENTLY SELECTED
225 FUNCTION PROBLEM - STEER RIGHT PERMANENTLY SELECTED
226 ACCELERATOR FAULTY - WIPER OUT OF RANGE
227 STEER SWITCHES FAULTY
228 FUNCTION LOCKED OUT - ACCELERATOR NOT CENTERED
229 FUNCTION PROBLEM - TRIGGER PERMANENTLY CLOSED
2210 TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL
2-3
231 FUNCTION PROBLEM - LIFT PERMANENTLY SELECTED
232 GROUND LIFT UP / DOWN ACTIVE TOGETHER
233 FUNCTION PROBLEM - BRAKE RELEASE PERMANENTLY SELECTED
2-5
251 ELEV ANGLE SENSOR FAULTY - VOLTAGE OUT OF RANGE
252 ELEV ANGLE SENSOR HAS NOT BEEN CALIBRATED
253 DRIVE PREVENTED - CHARGER CONNECTED
254 DRIVE & LIFT UP PREVENTED - CHARGER CONNECTED
255 PLATFORM OVERLOADED
256 DRIVE PREVENTED - POTHOLE NOT ENGAGED
257 ELEV PROX PERMANENTLY CLOSED - CHECK PROX AND ANGLE ADJUSTMENT
258 DRIVE & LIFT PREVENTED - BRAKES ELECTRICALLY RELEASED FOR TOWING
259 MODEL CHANGED - HYDRAULICS SUSPENDED - CYCLE EMS
2510 DRIVE PREVENTED - BRAKES NOT RELEASING
3121656
SECTION 6. DIAGNOSTIC TROUBLE CODES
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SECTION 6 - DIAGNOSTIC TROUBLE CODES

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6-1