Envelope Control Disabled; Envelope Encroached - Hydraulics Suspended; Everything Ok; Excessive Can Bus Communication Errors - JLG 1250AJP Troubleshooting Manual

1.90 ENVELOPE CONTROL DISABLED

Flash Code: 9-9
Envelope control disabled. The user has forced envelope control off with the analyzer from access level 0. This can happen
if calibration procedure is not followed properly.
Note Pretest Instructions
1.90.1 Perform 5.8 Boom Sensor
Calibration on Pg. 309 then
cycle power.

1.91 ENVELOPE ENCROACHED - HYDRAULICS SUSPENDED

Flash Code: 0-0
Envelope encroached - hydraulics suspended. The system detected a violation of the safe operating area envelope. If plat-
form is stuck in the air call JLG for help.
Note Pretest Instructions
1.91.1
1.91.2 Perform boom sensor cali-
bration
1.91.3 Perform Chassis Tilt calibra-
tion

1.92 EVERYTHING OK

Flash Code: 0-0
Everything OK. The "normal" help message when the analyzer is plugged into the platform. No troubleshooting is needed.

1.93 EXCESSIVE CAN BUS COMMUNICATION ERRORS

Flash Code: 6-6
Excessive CAN bus communication errors. More than 500 bus off or more than 500 bus passive conditions have been
detected by the ground module in the current power cycle. This could be due to faulty bus wiring or termination resistors,
capacitance on the bus, or a module not communicating.
Note Pretest Instructions
1.93.1
1.93.2
1.93.3 For help with this type of test
see 6.2 Continuity Mea-
surement Over Long Dis-
tances on Pg. 321
3128411
SECTION 1 - FAULT DICTIONARY AND SELECTED TROUBLESHOOTING
Test
Did fault clear?
Test
Is the platform stuck in the air?
Did calibration complete successfully?
Did calibration complete successfully?
Test
Does the CAN resistance between terminal 13
and terminal 24 of the ground module J7 con-
nector [X007.13 X007.24] measure 60Ω and
open circuit between terminal 13 and shield
[X007.18] and open circuit between terminal
24 and shield [X007.18]?
Does the platform software version show "??"
in ANALYZER ⇒ DIAGNOSTICS ⇒ VERSIONS
⇒ PLATFORM MODULE SOFTWARE:??
Is there CAN HI continuity between terminal 31
of the platform module J7 connector
[X169.31] and terminal 13 of the ground mod-
ule J7 connector [X007.13] and CAN LO conti-
nuity between terminal 30 of the platform
module J7 connector [X169.30] and terminal
24 of the ground module J7 connector
[X007.24]?
1250AJP
Result Corrective Action
Yes Troubleshooting complete
No Reprogram/replace ground module
Result Corrective Action
Yes Call JLG for help
No Go to step 1.91.2
Yes Go to step 1.91.3
No Troubleshoot according to calibration fault
Yes Troubleshooting complete
No Troubleshoot according to calibration fault
Result Corrective Action
Yes Go to step 1.93.2
No Go to step 1.93.29 to examine the CAN termina-
tion
Yes Go to step 1.93.3
No Go to step 1.93.13
Yes Go to step 1.93.13
No Go to step 1.93.4
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