JLG 1250AJP Service Manual - Manual (Page 547)

SECTION 6 - JLG CONTROL SYSTEM
3121171 – JLG Lift – 6-115
9 Disconnect the Chassis Module deutsche
plug at the ”T’ fitting below the Boom
Length & Angle Module. Perform an ohms
check at the ”A” and ”B” sockets of the
deutsche plug. Inspect the shield wire ”C”
for shorts. Approximately 120 ohms Reconnect deutsche
plug and go to step 10 Inspect the harness
from the ”T” fitting at
the BLAM to the
Chassis Module plug
connection at the bat-
tery. Assure proper
continuity and correct
wiring per Electrical
Schematic.
10 Disconnect the Chassis Module connec-
tion at the right side of the battery at the
turntable lock pin. Perform an ohms
check at the #1 and #2 connections of
the plug. Inspect shield wire #3 for possi-
ble short. Approximately 120 ohms Reconnect plug and
go to step 11 Inspect the harness
from the slip ring con-
nections at the top
and bottom plug con-
nections of the swivel.
Assure proper conti-
nuity and correct wir-
ing per Electrical
Schematic.
11 Disconnect the Chassis Module connec-
tion below the swivel under the machine.
Perform an ohms check at the #1 and #2
connections of the plug that is routed to
the Chassis Module. Inspect shield wire
#3 for possible short. Approximately 120 ohms Reconnect plug and
go to step 12 Inspect the harness
from the bottom of the
swivel into the Chas-
sis Module. Assure
proper continuity and
wiring r schematic
1870149A.
12 Make sure the Chassis Module CANbus
link wires are installed correctly at the
plug near the battery, the plug below the
swivel and 31 plug at the Chassis Module. Electrical Schematic Stop Replace the Chassis
Module.
Table 6-8. Troubleshooting: Platform Can Communications Lost
STEP ACTION REQUIRED SPEC YES NO