Bobcat W3235 (32-35) Fault Code: ACS Tilt Handle/Pedal Not in Neutral
Also shown on the panel as 32-35 · Also called ACS (AHC) Tilt Handle/Pedal Not in Neutral
ACS Tilt Handle/Pedal Not in Neutral · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
Bobcat code W3235, shown on the panel as 32-35, means the ACS controller sees the tilt handle or tilt pedal signal outside the neutral voltage range while PTOL is enabled. When it sets, lift and tilt functions are disabled until the fault clears and power is cycled.
Medium severity. The machine is not unsafe to sit in, but lift and tilt are locked out, so no loader work can be done until this is diagnosed. Treat it as a stop-work-until-fixed issue rather than an emergency.
What does Bobcat error code W3235 mean?
W3235 is set by the ACS (attachment control system) controller when it reads the tilt handle or tilt pedal signal outside the accepted neutral window while PTOL (pilot operated tilt/lift or similar enable function) is active. The normal neutral range for the handle signal wire and the pedal signal wire is 2.24 - 2.48 volts. If the controller sees a voltage outside that band while PTOL is enabled, it assumes the handle or pedal is not centered and shuts down lift and tilt as a safety precaution.
This is a deliberate lockout, not a random glitch. The controller will not let you operate lift or tilt functions if it cannot confirm the control device is at rest, because an out-of-neutral signal could mean an uncommanded movement request or a wiring fault feeding bad data.
Depending on the model and harness revision, the handle signal is carried on wire 4750 or wire 3620, and the pedal signal is carried on wire 4760. Which wire number applies depends on your specific machine and controller software version.
Common causes of W3235
- Tilt handle or tilt pedal physically held out of the neutral position when PTOL is enabled.
- Handle signal wire (4750 or 3620, depending on model) shorted to the 5 volt supply voltage. This applies in hand mode only.
- Pedal signal wire 4760 shorted to the 5 volt supply voltage. This applies in foot mode only.
- Ground wire 2750 or 2760 open.
- A faulty handle or pedal sensor.
- A faulty ACS controller.
- Moisture, corrosion, or pushed-back pins in the ACS controller, tilt handle, tilt pedal connectors, or ACS harness.
- Intermittent causes that are not present at the time of testing, which may include loose connections, corrosion, pushed-back pins, the controller, the wire harness, or a combination of these.
How to troubleshoot Bobcat W3235: first checks
- Confirm the key switch is on and PTOL is enabled, since these are the required conditions for the code to set, then check whether the handle or pedal is actually resting in neutral with nothing holding it out of position.
- With a meter, check the handle signal wire and pedal signal wire for voltage. Neutral should read 2.24 - 2.48 volts; a reading pinned near 5 volts points to a short to the 5 volt supply.
- Inspect ground wire 2750 and 2760 for continuity, since an open ground on either circuit is a listed cause.
- Open up the ACS controller, tilt handle, and tilt pedal connectors and look for moisture, corrosion, or pins that have been pushed back out of their sockets.
- Wiggle-test the harness and connectors while watching for the code to reset, especially if it was intermittent and not active during your initial check.
- If wiring and connectors check out, test the handle/pedal sensor directly, then suspect the ACS controller itself if the sensor and wiring are confirmed good.
How the code clears
Once the repair is complete, the fault clears by cycling power (turning the key off, then back on). No separate reset procedure or software step is listed beyond this power cycle.
Affected models and serial ranges
W3235 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 W3235 mean?
It means the ACS controller detected that the tilt handle or tilt pedal signal was outside the normal neutral voltage range while PTOL was enabled. The neutral range is 2.24 - 2.48 volts. Lift and tilt functions are disabled while this code is active.
Why did my loader lose lift and tilt with no warning?
W3235 disables lift and tilt automatically as a safety response the moment the controller sees the handle or pedal signal out of the neutral band with PTOL enabled. It is not a random shutdown, it is the controller protecting against an unconfirmed control input.
Is W3235 the same fault on wire 4750 and wire 3620?
Yes, functionally. Different model years and controller versions label the handle signal circuit as either wire 4750 or wire 3620, but both feed the same neutral-position check for the tilt handle in hand mode.
Can a bad ground cause W3235?
Yes. An open ground wire 2750 or 2760 is a listed cause. Since the neutral read depends on a clean, complete ground reference, an open ground can push the signal reading outside the neutral window.
How do I clear W3235 after fixing it?
Cycle the key power off and back on. No other reset procedure is listed for this code.
What if the code doesn't show up when I test it?
That is common with intermittent wiring issues. Loose connections, corrosion, or pushed-back pins can cause the code to come and go, and the cause may not be found until the fault is active during testing.
Which Bobcat models can show W3235?
It applies across the S510, S530, S550, S570, S590, S630, S650, S750, S770, T550, T590, T630, T650, T750, and T770, T870 lineup that uses the ACS controller for tilt handle/pedal neutral detection.