Engine Shutdown - Axle Lockout Valve Fault; Engine Trouble Code; Common Deutz Engine Fault Codes - JLG 1250AJP Troubleshooting Manual

SECTION 1 - FAULT DICTIONARY AND SELECTED TROUBLESHOOTING
Note Pretest Instructions
1.87.5 Backprobe terminal 12 and
terminal 13 of the EMR2
ECU equipment connector
[X240]
1.87.6 Disconnect the EMR2 ECU
equipment connector
[X240] and the BLAM mod-
ule J4 connector [X089].
See 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321.
1.87.7 Disconnect the EMR2 ECU
equipment connector
[X240] and the CAN pass
thru for EMR2 - 3 position
connector [X268]. See 6.2
Continuity Measurement
Over Long Distances on Pg.
321.

1.88 ENGINE SHUTDOWN - AXLE LOCKOUT VALVE FAULT

Flash Code: 8-6
Engine shutdown - axle lockout valve fault. The control system detected a short to battery or open circuit on the axle lockout
valve and detects pressure on the pressure switch and the boom is out of transport position. Engine starting will be pre-
vented while this fault is active. Use auxiliary power to lower the boom to transport. See 1.265 RESTRICTED TO TRANS-
PORT - AXLE LOCKOUT VALVE STB OR OC on Pg. 134.

1.89 ENGINE TROUBLE CODE

Flash Code: 4-3
Engine trouble code. This fault text is followed by the engine's specific fault code. This code could represent engine faults
like low oil pressure warning, high coolant temperature warning, etc. See Table 1-1. Common Deutz Engine Fault Codes on
Pg. 70 or consult the engine control module manual to interpret the engine specific fault code.
Fault Code using Fault Code using
JLG Analyzer Deutz SERDIA
190:8 1
1-70
Test
Does the CAN resistance between terminal 12
and terminal 13 of the EMR2 ECU equipment
connector [X240] measure 60Ω?
Is there CAN HI continuity between socket 12
of the EMR2 ECU equipment connector
[X240.12.soc] and socket 3 of the BLAM
module J4 connector [X089.3.soc] and CAN
LO continuity between socket 13 of the EMR2
ECU equipment connector [X240.13.soc] and
socket 4 of the BLAM module J4 connector
[X089.4.soc]?
Is there CAN HI continuity between socket 12
of the EMR2 ECU equipment connector
[X240.12.soc] and pin A of the CAN pass thru
for EMR2 - 3 position connector [X268.A.pin]
and CAN LO continuity between socket 13 of
the EMR2 ECU equipment connector
[X240.13.soc] and pin B of the CAN pass thru
for EMR2 - 3 position connector
[X268.B.pin]?
Table 1-1. Common Deutz Engine Fault Codes
Fault Description Cause
Speed sensor Engine speed sen-
sor failure OR Gap
from sensor tip to
ringgear too large
OR Additional
incorrect impulses
received OR Wiring
to sensor inter-
rupted.
1250AJP
Result Corrective Action
Yes Go to step 1.87.6
No See 1.46 BLAM CAN COMMUNICATIONS LOST
on Pg. 48
Yes Replace the engine module
No Go to step 1.87.7
Yes Replace the valve harness between the BLAM
module J4 connector [X089] and the CAN pass
thru for EMR2 - 3 position connector [X268]
No Check the RED and BLACK wires between the
EMR2 ECU equipment connector [X240.12
X240.13] and the CAN pass thru for EMR2 - 3
position connector [X268.A X268.B]
Troubleshooting
Results
Engine
Loss of engine Check distance
speed signal will from sensor to
cause the engine to ringgear. Check for
shut down or not contamination on
start. sensor end. Check
wiring connection.
Check sensor
located at flywheel
housing and
replace if required.
Troubleshooting
Machine
3128411