Bobcat M5407 (54-07) Fault Code: Tilt Spool Lock Open Circuit
Also shown on the panel as 54-07
Tilt Spool Lock Open Circuit · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
M5407 (panel code 54-07) means the gateway controller has detected an open circuit on the tilt spool lock solenoid signal wire (4670 or 4370 depending on model) or its return wire (2670 or 2370). When this code sets, lift and tilt functions are disabled until the fault is resolved.
High severity. M5407 disables both lift and tilt on the machine, which stops normal loader operation. It is not an engine-damage emergency, but the machine cannot do productive work until the open circuit is found and fixed, so it should be treated as a stop-and-diagnose condition rather than something to run through.
What does Bobcat error code M5407 mean?
M5407 is set by the gateway controller when it detects an open circuit on the tilt spool lock solenoid circuit, specifically the signal wire (labeled 4670 on some models, 4370 on others) or the return wire (2670 or 2370 depending on model). The tilt spool lock solenoid is supplied with battery voltage by the gateway controller whenever the seatbar is in the down position, which is part of the machine's operator-presence safety system for controlling hydraulic spool movement.
Because the tilt spool lock function is tied directly into the loader's lift and tilt hydraulics, an open circuit here is treated as a safety-relevant fault. As soon as the gateway controller sees the open condition, it disables both lift and tilt, meaning the operator will lose the ability to raise, lower, or tilt the attachment until the issue is corrected.
This code applies across a wide range of Bobcat skid-steer and compact track loader models. The exact wire numbers referenced (4670/2670 versus 4370/2370) depend on which model and harness configuration the machine uses, but the failure mode and the description are the same: an open in the solenoid signal or return path.
Common causes of M5407
- Signal wire (4670 or 4370 depending on model) shorted to supply voltage or open
- Return wire (2670 or 2370 depending on model) open
- Faulty tilt spool lock solenoid
- Faulty gateway controller
- Moisture, corrosion, or pushed-back pins in the gateway controller connector, tilt spool lock solenoid connector, or the mainframe harness
- Intermittent fault: if the code is not active at the time of testing, the cause may not be found immediately. Probable causes in this case include loose connections, corrosion, pushed-back pins, the controller, the wire harness, or a combination of these problems
How to troubleshoot Bobcat M5407: first checks
- Confirm the key switch is in the run/enter position, since this is the condition under which the code is set, and note whether the code is currently active or was stored from a prior event
- Inspect the gateway controller connector and the tilt spool lock solenoid connector for moisture, corrosion, or pushed-back pins, since this is a commonly listed cause
- Check the mainframe harness along the run to the tilt spool lock solenoid for chafing, pinches, or connector damage that could open the signal or return wire
- With appropriate wiring diagrams for the specific model, test the signal wire (4670 or 4370) for continuity and for an unwanted short to supply voltage, and test the return wire (2670 or 2370) for continuity
- If no fault is found and the code was intermittent, recheck all connectors and harness sections for loose connections or pushed-back pins before suspecting the solenoid or the gateway controller itself
How the code clears
Once the repair is complete, cycle the key power to clear the code. No separate clearing step is listed beyond cycling power.
Affected models and serial ranges
M5407 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 M5407 mean?
It means the gateway controller detected an open circuit on the tilt spool lock solenoid's signal wire or return wire. This disables both lift and tilt until the open circuit is repaired.
Why does M5407 disable lift and tilt?
The tilt spool lock solenoid is part of the safety circuit tied to the seatbar position. The gateway controller supplies it battery voltage when the seatbar is down. An open circuit on that solenoid's wiring means the controller can no longer confirm the circuit is working correctly, so it locks out lift and tilt as a precaution.
Are the wire numbers for M5407 the same on every Bobcat model?
No. Some models use signal wire 4670 and return wire 2670, while others use signal wire 4370 and return wire 2370. Check the wiring diagram for the specific model before testing.
Can M5407 be an intermittent fault?
Yes. If the code is not active at the time of testing, the root cause may not show up right away. Likely culprits in that case are loose connections, corrosion, pushed-back pins, the controller, or the wire harness, or a combination of these.
How do I clear M5407 after repair?
Cycle the key power. No separate clearing procedure is listed beyond that.
What should I check first if I get an M5407 code?
Start with the gateway controller connector and the tilt spool lock solenoid connector, looking for moisture, corrosion, or pushed-back pins. Then check the mainframe harness and test the signal and return wires for continuity and unwanted shorts.
Is it safe to keep operating the machine with M5407 active?
Since lift and tilt are disabled once the code sets, the machine cannot perform normal loader work. This is a stop-and-diagnose situation rather than something to work around.