JLG Telehandler 8516 Fault Code: Load Moment - LSI Load Cell A - Out of Range
Also called LSI Load Cell A - Out of Range
Load Moment - LSI Load Cell A - Out of Range · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
Fault 8516 means the Load Sensing Indicator (LSI) system has detected that load cell A is reading out of range and is sending a CAN bus message to the UGM. The machine responds as if the load moment cutout percentage has been reached, restricting operation to creep mode via the LSI cancel switch until the fault is cleared.
High severity. This code puts the machine into an automatic load moment cutout, limiting function to LSI cancel switch creep mode. It signals a possible loss of reliable load sensing, which is a real safety concern for lifting operations, so it should be diagnosed before returning to normal lift work.
What does JLG Telehandler error code 8516 mean?
Fault 8516 is set when the LSI (Load Sensing Indicator) system determines that load cell A's reading is out of range and reports this over the CAN bus to the UGM (Universal Ground Module). Load cell A is one of the sensors the LSI system uses to calculate load moment and decide whether the machine is operating within its rated lifting capacity.
When this fault sets, the control system reacts as though the load moment cutout percentage parameter has been reached, meaning it treats the situation as if the machine were at or over its rated load, regardless of what is actually being lifted. The exact reaction depends on the machine's market configuration, but generally this means restricted operation.
The system also sets a CAN message bit that allows the LSI display to control its own alarm, so the operator will typically see a warning on the LSI gauge or display along with the operational restriction.
What triggers a JLG Telehandler 8516 code?
The LSI module detects that load cell A is out of range, and in at least one described condition, the OMD (overload moment device) reading reaches 100%. This combination causes the machine to automatically enter LSI cutout, permitting operation only in creep mode through the LSI cancel switch.
Common causes of 8516
- Load cell A itself failing or producing an out-of-range signal, such as an internal sensor fault or a broken sensing element.
- Wiring problems between load cell A and the LSI system or UGM, including damaged, corroded, or loose connections.
- A fault in the LSI gauge or sensor wiring, as noted directly in the diagnostic guidance to check.
- CAN bus communication issues that prevent the LSI system's message from being interpreted correctly by the UGM.
How to troubleshoot JLG Telehandler 8516: first checks
- Check the LSI gauge for any active alarm or fault display and note exactly what it is showing before doing further diagnostics.
- Inspect the wiring and connectors for load cell A for visible damage, corrosion, or loose pins, since sensor wiring is specifically flagged as a check point.
- Check all CAN bus wiring and connectors between the LSI system and the UGM for damage or poor connections.
- Verify load cell A's physical mounting and condition, looking for obvious mechanical damage that could affect its readings.
- Confirm the machine's market configuration settings, since the cutout reaction depends on this configuration.
How the code clears
This fault is latched and stays active until the machine's power is cycled. Even after a power cycle clears the latch, if the underlying issue with load cell A or its wiring is not repaired, the fault is likely to set again. Direct guidance says to check the LSI gauge and sensor wiring as part of resolving the condition permanently.
Frequently asked questions
What does JLG fault code 8516 mean?
It means the LSI system has detected that load cell A is out of range and has notified the UGM over the CAN bus. The machine then acts as though the load moment cutout limit has been reached.
Can I still operate the telehandler with fault 8516 active?
Only in a limited way. The machine goes into an automatic LSI cutout, and operation is only available in creep mode through the LSI cancel switch until the issue is resolved.
How do I clear fault code 8516?
The fault is latched until the machine's power is cycled. However, cycling power alone will not fix the underlying load cell A or wiring problem, so the fault can return.
What should I check first for this fault?
Start with the LSI gauge display, then inspect load cell A's sensor wiring and connectors, since that wiring is specifically called out for inspection.
Is fault 8516 a safety issue?
Yes. It relates directly to the load sensing system that helps prevent overloading during lifting operations, so it should be treated as a priority before resuming normal lift work.
Does the OMD reading matter for this fault?
Yes, one description ties the fault trigger to the OMD reading reaching 100% alongside the LSI module detecting the out-of-range condition on load cell A.
Will this fault code reset itself?
No separate reset procedure beyond a power cycle is listed for this code. If the load cell A or wiring problem remains, expect the fault to latch again.