JLG 1250AJP Troubleshooting Manual page 76

SECTION 1 - FAULT DICTIONARY AND SELECTED TROUBLESHOOTING
Note Pretest Instructions
1.93.18 For help with this type of test
see 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321
1.93.19
1.93.20 For help with this type of test
see 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321
1.93.21
1.93.22 For help with this type of test
see 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321
1.93.23
1.93.24 For help with this type of test
see 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321
1.93.25
1.93.26 For help with this type of test
see 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321
1.93.27
1-76
Test
Is there CAN HI continuity between terminal 6
of the BLAM module J1 connector [X086.6]
and terminal 13 of the ground module J7 con-
nector [X007.13] and CAN LO continuity
between terminal 7 of the BLAM module J1
connector [X086.7] and terminal 24 of the
ground module J7 connector [X007.24]?
Is the TOWER LIFT PVG VALVE COMMUNI-
CATIONS fault active in the fault log?
Is there CAN HI continuity between terminal 4
of the tower lift PVG valve connector [X066.4]
and terminal 13 of the ground module J7 con-
nector [X007.13] and CAN LO continuity
between terminal 1 of the tower lift PVG valve
connector [X066.1] and terminal 24 of the
ground module J7 connector [X007.24]?
Is the TOWER TELESCOPE PVG VALVE COM-
MUNICATIONS fault active in the fault log?
Is there CAN HI continuity between terminal 4
of the tower tele PVG valve connector
[X067.4] and terminal 13 of the ground mod-
ule J7 connector [X007.13] and CAN LO conti-
nuity between terminal 1 of the tower tele PVG
valve connector [X067.1] and terminal 24 of
the ground module J7 connector [X007.24]?
Is the MAIN LIFT PVG VALVE COMMUNICA-
TIONS fault active in the fault log?
Is there CAN HI continuity between terminal 4
of the main lift PVG valve connector [X065.4]
and terminal 13 of the ground module J7 con-
nector [X007.13] and CAN LO continuity
between terminal 1 of the main lift PVG valve
connector [X065.1] and terminal 24 of the
ground module J7 connector [X007.24]?
Is the ENGINE CONTROLLER CAN COMMU-
NICATIONS LOST fault active in the fault log?
Is there CAN HI continuity between terminal 12
of the engine module connector [X240.12]
and terminal 13 of the ground module J7 con-
nector [X007.13] and CAN LO continuity
between terminal 13 of the engine module
connector [X240.13] and terminal 24 of the
ground module J7 connector [X007.24]?
Does the Chassis software version show "??"
in ANALYZER ⇒ DIAGNOSTICS ⇒ VERSIONS
⇒ CHASSIS MODULE SOFTWARE:??
1250AJP
Result Corrective Action
Yes Go to step 1.93.19
No Check the RED, BLACK, and Shield wires be-
tween the BLAM module J1 connector [X086]
and the ground module J7 connector [X007].
See step 1.46.8 of 1.46 BLAM CAN COMMUNI-
CATIONS LOST on Pg. 48
Yes Go to step 1.93.20
No Go to step 1.93.21
Yes Go to step 1.93.21
No Check the RED, BLACK, and Shield wires be-
tween the tower lift PVG valve connector [X066]
and the ground module J7 connector [X007].
See step 1.46.8 of 1.46 BLAM CAN COMMUNI-
CATIONS LOST on Pg. 48
Yes Go to step 1.93.22
No Go to step 1.93.23
Yes Go to step 1.93.23
No Check the RED, BLACK, and Shield wires be-
tween the tower tele PVG valve connector
[X067] and the ground module J7 connector
[X007]. See step 1.46.8 of 1.46 BLAM CAN
COMMUNICATIONS LOST on Pg. 48
Yes Go to step 1.93.24
No Go to step 1.93.25
Yes Go to step 1.93.25
No Check the RED, BLACK, and Shield wires be-
tween the main lift PVG valve connector [X065]
and the ground module J7 connector [X007].
See step 1.46.8 of 1.46 BLAM CAN COMMUNI-
CATIONS LOST on Pg. 48
Yes Go to step 1.93.26
No Go to step 1.93.27
Yes Go to step 1.93.27
No Check the RED, BLACK, and shield wires
between the engine module connector [X240]
and the ground module J7 connector [X007]
Yes Go to step 1.93.28
No Go to step 1.93.29
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