Bobcat D7541 (75-41) Fault Code: Right Swash Plate Sensor Out of Range High
Also shown on the panel as 75-41 · Also called Drive Right Swash Plate Sensor Out of Range High, Right Swash Plate Sensor Out Of Range High
Right Swash Plate Sensor Out of Range High · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
D7541 sets when the drive/drive plus controller sees the right swash plate sensor signal above 4.85 volts, outside the normal 1.0 - 4.0 volts output range. The machine keeps running in speed management mode, but drive performance and traction control accuracy can be affected. Panel form: 75-41.
Medium severity. The machine continues to operate in speed management mode after this code sets, so it is not an immediate shutdown fault. However, it points to a lost or corrupted drive control signal on the right pump, so it should be diagnosed before heavy or precision work continues.
What does Bobcat error code D7541 mean?
D7541 is set by the drive or drive plus controller when the signal from the right swash plate sensor reads greater than 4.85 volts. The swash plate sensors sit at the bottom of the drive pump and are keyed to the swash plate inside the pump, so they report the actual position of the pump's swash plate to the controller.
The sensor is fed battery voltage from the gateway controller, and its normal output signal range is 1.0 - 4.0 volts. A reading above 4.85 volts is well outside that window, telling the controller the signal is not trustworthy, whether from a wiring fault, a bad sensor, or a controller issue.
When D7541 is active, the machine does not shut down. It continues to operate in speed management mode, which is a reduced or altered drive control strategy the controller falls back on when it can't fully trust the swash plate position signal.
Common causes of D7541
- Ground wire 2810 open
- Signal wire (3810 on some models, 4720 on others) shorted to supply voltage or open
- Faulty right swash plate sensor
- Faulty drive/drive plus controller
- Moisture, corrosion, or pushed back pins in the drive/drive plus controller connectors, the swash plate sensor connector, or the AWS/SJC wire harness
- Intermittent fault: if the code is not active at the time of testing, the cause may not be found. Probable causes in this case include loose connections, corrosion, pushed back pins, the controller, the wire harness, or a combination of these
How to troubleshoot Bobcat D7541: first checks
- Confirm the code is active with the key switch in run/enter position, since this is the condition required for the controller to set D7541
- Inspect the ground wire (2810) for an open circuit
- Check the signal wire (3810 or 4720 depending on model/harness) for a short to supply voltage or an open condition
- Inspect all drive/drive plus controller connectors, the right swash plate sensor connector, and the AWS/SJC wire harness connectors for moisture, corrosion, or pushed-back pins
- With key on, verify the sensor's actual output voltage is within the normal 1.0 - 4.0 volts range, not above 4.85 volts
- If the fault will not stay active for testing, treat it as intermittent and inspect connections, harness routing, and pin fit closely since the root cause may not show up on a static check
- Note that a related code, D7542 (right swash plate sensor out of range low), can also appear if there is an intermittent short to supply voltage on the same signal wire, so check for that code too when diagnosing
How the code clears
No separate repair-specific reset procedure is listed. After the repair is complete, clear the code by cycling power to the machine.
Affected models and serial ranges
D7541 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 |
| S750 | SN A3P211001-299999 |
| S770 | SN A39511001-99999, 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 D7541 mean?
It means the drive/drive plus controller detected the right swash plate sensor signal reading above 4.85 volts, which is outside the sensor's normal 1.0 - 4.0 volts output range. This tells the controller it cannot rely on that position signal.
Can I keep operating the machine with D7541 active?
The machine will continue to run in speed management mode when this code is active. It is not a full shutdown fault, but the underlying wiring, sensor, or controller issue should be diagnosed since drive control accuracy can be affected.
What is the panel number for D7541?
On the display panel it appears as 75-41.
Is D7541 related to code D7542?
Yes. D7542 is the right swash plate sensor out of range low code, and it can also occur if there is an intermittent short to supply voltage on the same signal wire (3810 or 4720 depending on the model's harness) that affects D7541.
What wires and components should be checked first for D7541?
Start with ground wire 2810 for an open circuit, and the signal wire, either 3810 or 4720 depending on the model, for a short to supply voltage or an open condition. Also inspect the right swash plate sensor, the drive/drive plus controller connectors, and the AWS/SJC wire harness for moisture, corrosion, or pushed-back pins.
How do I clear D7541 after making a repair?
Cycle power to the machine. No other reset procedure is listed for this code.
Why does D7541 sometimes not show up during testing?
The fault can be intermittent. If it is not active when you test, the exact cause may not be found at that time. Likely culprits in intermittent cases include loose connections, corrosion, pushed-back pins, the controller, the wire harness, or a combination of these.