Bobcat W3265 (32-65) Fault Code: ACS Sensor Supply Voltage Out of Range (ACS Only)
Also shown on the panel as 32-65 · Also called ACS (AHC) Sensor Supply Voltage Out of Range, ACS Sensor Supply Voltage Out Of Range (ACS Only), ACS Sensor Supply Voltage Out Of Range (SJC Only), ACS Sensor Supply Voltage Out of Range (SJC Only)
ACS Sensor Supply Voltage Out of Range (ACS Only) · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
Bobcat code W3265 (panel display 32-65) means the ACS controller sees the 5-volt sensor supply going above 5.5 volts or below 4.5 volts. When this happens, lift and tilt functions are disabled until the fault is fixed and power is cycled.
High severity. Lift and tilt are disabled while this code is active, which stops normal loader operation. It is not a fire or engine-damage risk, but the machine is not usable for lifting work until the wiring or controller fault is found and cleared.
What does Bobcat error code W3265 mean?
W3265 is set by the ACS controller (the module that manages lift/tilt handles, pedals, and actuators) when it detects that its 5-volt sensor supply has drifted outside the normal window, reading higher than 5.5 volts or lower than 4.5 volts.
This 5-volt supply feeds the handles, pedals, and actuators that let the operator control lift and tilt. Because the controller depends on a clean, steady 5-volt reference to interpret those sensor signals correctly, it disables lift and tilt functions the moment the supply goes out of range, rather than risk acting on bad sensor data.
Depending on the machine and wiring variant, the affected supply circuit is either wire 5970 or wire 1500. Both feed the same basic function, just on different harness numbering used across model variants. This code can also trigger a secondary code, W4004 ('right joystick switches in error'), since the joystick shares the same supply.
Common causes of W3265
- Sensor supply wire (5970 on some machines, 1500 on others) shorted to battery voltage or shorted to ground
- Faulty lift/tilt handle sensors
- Faulty lift/tilt pedal sensors
- Faulty lift/tilt actuators
- Internal fault in the ACS controller itself
- Moisture, corrosion, or pushed-back pins in the ACS harness, pedal connectors, handle connectors, or actuator connectors
- Intermittent faults from loose connections, corrosion, pushed-back pins, the controller, or the wire harness (or a combination), which may not be reproducible if the code is not active during testing
How to troubleshoot Bobcat W3265: first checks
- . Confirm the key switch is in the run/enter position and PTOL (power take-off lock or similar operator presence/lockout condition) is enabled, since these are required for the code to be evaluated
- Inspect the ACS harness connectors, along with pedal, handle, and actuator connectors, for moisture, corrosion, or pins that have been pushed back out of their sockets
- Check the sensor supply wire (5970 or 1500 depending on the machine) for signs of chafing, pinching, or contact with battery voltage or ground
- Test the lift/tilt handle sensors, pedal sensors, and actuators for correct resistance and operation if wiring checks come back clean
- If the code is not active during testing, treat it as intermittent and recheck connectors and harness routing carefully, since the root cause may not show up until the fault recurs
- If wiring, sensors, and actuators all check out, suspect the ACS controller itself
How the code clears
Once the wiring, connector, sensor, actuator, or controller fault has been repaired, clear the code by cycling the key switch power. No separate reset procedure is listed for this code beyond a power cycle.
Affected models and serial ranges
W3265 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 ATZC11001-99999 |
| 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 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 W3265 mean?
It means the ACS controller detected that its 5-volt sensor supply is out of range, either above 5.5 volts or below 4.5 volts. This supply feeds the lift/tilt handles, pedals, and actuators.
What is the panel display number for W3265?
On the display panel, W3265 shows as 32-65.
Can I still operate the machine with W3265 active?
No. While this code is active, lift and tilt functions are disabled by the ACS controller until the fault is corrected.
Why does W3265 sometimes come with code W4004?
Because the same 5-volt supply also feeds the right joystick switches, a supply fault can trigger both W3265 and W4004 ('right joystick switches in error') at the same time.
How do I clear W3265 after a repair?
Cycle the key switch power. No other reset step is listed for this code.
What if the code doesn't show up when I test the machine?
Treat it as intermittent. Likely causes include loose connections, corrosion, pushed-back pins in a connector, harness damage, or a controller fault that isn't currently active. Careful inspection of all ACS-related connectors is the best approach.
Which wire is at fault, 5970 or 1500?
It depends on the machine variant. Some Bobcat models use sensor supply wire 5970, while others use wire 1500 for the same 5-volt supply function. Check wiring specific to your model.