Bobcat M0322 (03-22) Fault Code: Battery Voltage Out of Range Low
Also shown on the panel as 03-22 · Also called System Voltage Out of Range Low
Battery Voltage Out of Range Low · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
M0322 sets when the gateway controller sees battery voltage below 6.0 volts on the unswitched power wires 1110 and 1130 with the key switch in run/enter. It shows up as flashing lift, tilt, and traction lights, and it's a stored code only, meaning it appears alongside the active code M0314 ("battery voltage extremely low") rather than on its own.
High severity. A voltage this low on the main unswitched supply can knock out lift, tilt, and traction functions at the same time. It's not immediately catastrophic to the engine, but it can strand the machine or leave you without hydraulic control mid-task, so it should be diagnosed before returning to work.
What does Bobcat error code M0322 mean?
M0322 is Bobcat's way of flagging that the gateway controller is not seeing enough voltage on its unswitched power feed, wires 1110 and 1130, to run reliably. The threshold is under 6.0 volts, which is well below normal operating voltage for a 12-volt system, so this is not a minor sag, it's closer to a near-total loss of supply to the controller.
Because this condition is severe, Bobcat ties it directly to code M0314, "battery voltage extremely low." When the controller detects the low-voltage condition, M0314 displays as the active code while M0322 gets logged in stored codes. You'll also see the lift, tilt, and traction warning lights flashing on the panel, which is the operator-facing symptom of this fault.
This code affects the gateway controller's ability to manage machine functions. Since lift, tilt, and traction all report the fault, the low voltage condition is affecting shared power distribution rather than one isolated circuit.
What triggers a Bobcat M0322 code?
The condition sets when the key switch is in run/enter position and the gateway controller measures less than 6.0 volts on unswitched power wires 1110 and 1130.
Common causes of M0322
- Poor or corroded battery connections at the terminals or cable ends
- A blown or failed fuse feeding the controller circuit (listed variously as FRC1 fuse 12, FRC1 fuse 7, or fuse 7 depending on model and harness revision)
- Open excitation wire (1800 or 1815 depending on model) or open ground wire 2015
- Controller supply wire 1110 or 1130 shorted to ground, or open
- Open controller ground wire 2500 or 2510
- A weak, damaged, or failing battery
- A failing or underperforming alternator
- A loose or damaged alternator bracket affecting alternator operation or grounding
- A fault in the gateway controller itself
- Moisture, corrosion, or pushed-back pins in the gateway controller connectors, the alternator connector, battery wire connections, the mainframe harness, or the engine harness
- An intermittent condition: if the code isn't active at the time of testing, the root cause may not be found right away. Likely culprits are loose connections, corrosion, pushed-back pins, the controller itself, the wire harness, or a combination of these
How to troubleshoot Bobcat M0322: first checks
- Inspect battery terminals and cable connections for corrosion, looseness, or damage; clean and tighten as needed
- Check the relevant fuse (FRC1 fuse 12, FRC1 fuse 7, or fuse 7, depending on your model) for continuity and proper seating
- Visually inspect wires 1110, 1130, 1800/1815, 2015, 2500, and 2510 for chafing, open circuits, or shorts to ground, and test with a meter where accessible
- Check the alternator and its mounting bracket for looseness, damage, or poor grounding, and confirm the alternator is charging correctly
- Inspect the gateway controller connectors, alternator connector, battery wiring, mainframe harness, and engine harness connectors for moisture, corrosion, or pushed-back pins
- Load-test the battery to rule out a weak or failing cell
- If the code is not currently active, treat it as intermittent and focus on connections and harness condition since the fault may not reproduce on demand
How the code clears
M0322 is self resetting. No separate manual clearing step is listed for this code. Once the underlying voltage problem is repaired and voltage returns to normal, the code should clear on its own.
Affected models and serial ranges
M0322 appears in our records across 16 Bobcat models. Match your machine by model and serial number.
| Model | Serial ranges |
|---|---|
| S510 | SN A3NJ11001-99999, SN A3NK11001-99999, SN ATZC11001-ATZC99999 |
| S530 | SN A7TV11001-99999, SN ATZD11001-99999 |
| S550 | SN A3NK11001-A3NL99999, SN A3NM11001-99999 |
| S570 | SN A7U711001-799999, SN A7U811001-899999 |
| S590 | SN ANMN11001-99999, SN ANMP11001-99999 |
| S630 | SN A3NT12370-99999, SN A3NU11001-11111, SN A3NU11112-99999 |
| S650 | SN A3NV11001-13098, SN A3NV13099-99999, SN A3NW11001-11248, SN A3NW11249-99999 |
| S750 | SN A3P211001-299999 |
| S770 | SN A3P411001-99999 |
| T550 | SN A7UJ11001-AJZV12276 |
| T590 | SN ALJU11001-999999, SN B37811001-999999, SN B3Z711001-999999 |
| T630 | SN A7PU11001-11663, SN A7PU11664-99999 |
| T650 | SN A3P012214-099999, SN A3P111242-199999 |
| T750 | SN ANKA11001-A99999 |
| T770 | SN A3P811001-899999, SN A3P911001-999999 |
| T870 | SN A3PG11001-99999, SN A3PH11001-99999 |
Frequently asked questions
What does Bobcat code M0322 mean?
It means the gateway controller detected battery voltage below 6.0 volts on the unswitched power wires 1110 and 1130 while the key switch was in run/enter. This is a severe voltage drop, not a minor fluctuation.
Why are my lift, tilt, and traction lights flashing?
Those three lights flash together as the visible symptom of M0322. Since all three share the same low-voltage supply issue, they all flag at once rather than pointing to one specific system failure.
Is M0322 the same as M0314?
They're related but not identical. M0314 ("battery voltage extremely low") is the active code displayed to the operator, while M0322 is logged in stored codes when that same low-voltage condition is detected. You'll typically find both together.
Can I clear M0322 myself?
You don't need to. It's self resetting, meaning once the voltage problem is actually fixed, the code clears on its own without a separate procedure.
Which fuse should I check first for M0322?
It depends on your specific model and harness revision. Bobcat's documentation references FRC1 fuse 12, FRC1 fuse 7, or fuse 7 across different variants, so check your machine's wiring diagram to confirm which one applies before assuming a number.
What if the code isn't active when I check it?
Treat it as intermittent. Bobcat notes that if the code isn't on at the time of testing, the cause may not be found right away. Focus on loose connections, corrosion, and pushed-back pins in connectors since those are the most common intermittent culprits.
Could a bad alternator cause M0322?
Yes. A failing alternator, or even a loose or damaged alternator bracket affecting its mounting or grounding, is listed as a possible cause alongside battery and wiring issues.