SECTION 8 - DIAGNOSTIC TROUBLE CODES
3121222
– JLG Lift –
8-13
33302
NEGATIVE SUPPLY - SHORT TO
BATTERY
Drive, Lift, and Steer Prevented
•
At power-up, the system module detected an external short on J1-12, J1-
17, J1-23, J2-14 or J2-15. Normally these pins are grounded by the Sys-
tem Module. All functions are prevented to protect the control system.
•
ZAPI - HEALTH (Status LED) - ON
33303
NEGATIVE SUPPLY - SHORT TO
GROUND
Drive, Lift and Steer Prevented
•
At power-up, the System Module detected an external short on J1-12, J1-
17, J2-14 or J2-15. Normally these pins are grounded by the System Mod-
ule. Since the external ground may compromise integrity, all functions
will be prevented.
•
ZAPI - HEALTH (Status LED) - ON
33304
RIGHT BRAKE - SHORT TO
GROUND
Drive, and Steer Prevented
•
Excessive current flow to the Right Brake solenoid was detected (J1-33
NRB).
•
ZAPI - HEALTH (Status LED) - ON
33305
STEER RIGHT VALVE - SHORT TO
GROUND
Drive, Steer, and Lift Up Prevented
•
Excessive current flow to the Steer Right Solenoid was detected (J2-18
NRV).
•
ZAPI - HEALTH (Status LED) - ON
33406
LiFT UP VALVE - SHORT TO
GROUND
Drive, Steer, and Lift Up Prevented
•
Excessive current flow to the Lift Up Solenlid was detected at (J2-2 PDV or
J2-16 NDV).
•
ZAPI - HEALTH (Status LED) - ON
33407
LIFT DN VALVE - SHORT TO
GROUND
Lift Up and Down Prevented
•
Excessive current flow to the Lift Down Solenoid was detected (J2-16
NDV).
•
ZAPI - HEALTH (Status LED) - ON
4-2 Thermal Limit (SOA)
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
421
POWER MODULE TOO
HOT - PLEASE WAIT
The power module has reached
thermal cutout.
•
Power down and allow to cool.
•
Do not operate in ambients over 140° F (60° C).
•
Check for jammed or obstructed drive motors.
•
Check for excessively high current consumption in the pump, ANALYZER -
> DIAGNOSTICS -> PUMP -> PUMP CUR over 130 Amps with an empty
deck.
•
Check for excessively high traction current consumption, ANALYZER ->
DIAGNOSTICS -> TRACTION -> ARM CUR over 120 Amps while driving on
the level.
422
DRIVING AT CUTBACK -
POWER MODULE CUR-
RENT LIMIT
The drive portion of the power
module has reached thermal
limit.
•
Check for jammed or obstructed drive motors.
•
Check for excessively high traction current consumption, ANALYZER ->
DIAGNOSTICS -> TRACTION -> ARM CUR over 120 Amps while driving on
the level.
423
LIFT UP AT CUTBACK -
POWER MODULE CUR-
RENT LIMIT
The lift up portion of the power
module has reached thermal
limit.
•
Check for jammed or obstructed arm stack or pivot bushing.
•
Check for excessively high current consumption in the pump, ANALYZER -
> DIAGNOSTICS -> PUMP -> PUMP CUR over 130 Amps with an empty
deck.
•
Refer to Pump Motor Electrical Evaluation in Section 4.8.
3-3 Ground Output Driver
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
Summary of Contents for 1230ES
Page 1: ...AS NZS Service and Maintenance Manual Model s 1230ES P N 3121222 June 22 2017 ...
Page 2: ...NOTES ...
Page 24: ...SECTION 1 MACHINE SPECIFICATIONS 1 12 JLG Lift 3121222 NOTES ...
Page 32: ...SECTION 2 GENERAL SERVICE INFORMATION 2 8 JLG Lift 3121222 NOTES ...
Page 78: ...SECTION 4 BASE COMPONENTS 4 40 JLG Lift 3121222 NOTES ...
Page 104: ...SECTION 5 CONTROL COMPONENTS 5 26 JLG Lift 3121222 NOTES ...
Page 158: ...SECTION 8 DIAGNOSTIC TROUBLE CODES 8 22 JLG Lift 3121222 NOTES ...
Page 198: ...SECTION 9 GENERAL ELECTRICAL INFORMATION SCHEMATICS 9 40 JLG Lift 3121222 ...
Page 199: ...SECTION 9 GENERAL ELECTRICAL INFORMATION SCHEMATICS 3121222 JLG Lift 9 41 ...
Page 200: ...SECTION 9 GENERAL ELECTRICAL INFORMATION SCHEMATICS 9 42 JLG Lift 3121222 ...
Page 202: ...SECTION 9 GENERAL ELECTRICAL INFORMATION SCHEMATICS 9 44 JLG Lift 3121222 NOTES ...