Bobcat W3277 (32-77) Fault Code: Remote Control No Information Error
Also shown on the panel as 32-77 · Also called ACS (AHC) Remote Control Information Error, Remote Control no Information Error
Remote Control No Information Error · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
W3277 (panel display 32-77) sets when the ACS controller loses contact with the remote control receiver after the two had already established communication. When this code is active, the engine shuts down and both traction and workgroup functions are disabled until the fault is resolved.
Critical severity. The engine shuts down and traction plus workgroup functions are disabled the moment this code is active. The machine is not operable until the fault clears, so this is a stop-now condition, not something to work around for the rest of the shift.
What does Bobcat error code W3277 mean?
W3277 is Bobcat's way of flagging a break in the CAN communication link between the ACS controller and the remote control receiver, but only after that link had already been successfully established. In plain terms, the machine's remote control system was talking to the receiver, then suddenly stopped hearing from it.
Because remote-controlled Bobcat loaders and compact track loaders rely on that receiver to relay operator commands, losing the link is treated as a safety-critical failure. Bobcat's response is immediate: shut the engine down and lock out traction and workgroup (bucket, arms, attachments) functions so the machine can't move or operate unexpectedly with a bad control link.
This code applies across the S510-S770 and T550-T870 lineup listed for remote control operation. The underlying cause is almost always electrical: a wiring, connector, fuse, or receiver problem interrupting the CAN bus conversation, rather than a mechanical or hydraulic fault.
Common causes of W3277
- CAN connector for the remote control system not fully plugged in
- Blown fuse: depending on model/harness revision this is FC2 Fuse 1 with FRC1 Fuse 7 or Fuse 8, or Fuse 5 with Fuse 8
- CAN communication wires 9500, 9600, and 9800 (or 3090 on some harness variants) shorted to supply voltage, shorted to ground, or open
- Failed or faulty remote control receiver
- Moisture, corrosion, or pushed-back pins in the gateway controller connectors, the ACD connector, or the remote control connector
- Intermittent fault not present at time of testing, caused by loose connections, corrosion, pushed-back pins, the controller itself, the wire harness, or a combination of these
How to troubleshoot Bobcat W3277: first checks
- Confirm the key switch is on (run/enter), since this is the condition required for the code to be active, then check whether W3277 is currently present or was only logged historically
- Visually inspect the CAN connector for the remote control system and make sure it is fully seated and locked
- Pull and check the relevant fuses (FC2 Fuse 1, FRC1 Fuse 7 or 8, or Fuse 5 and Fuse 8 depending on the harness) for continuity and correct amperage
- Inspect the gateway controller connectors, the ACD connector, and the remote control connector for moisture, corrosion, or pins that have been pushed back out of their sockets
- Trace and test CAN wires 9500, 9600, 9800 (and 3090 where applicable) for shorts to voltage, shorts to ground, or open circuits
- Inspect or swap the remote control receiver if wiring and fuses check out, since receiver failure is a listed cause
- If the code isn't active during testing, wiggle-test connectors and harness runs to try to reproduce an intermittent short or open
How the code clears
W3277 is self-resetting. Once the underlying wiring, connector, fuse, or receiver problem is repaired and the CAN link between the ACS controller and the remote control receiver is restored, the code clears on its own with no separate manual reset procedure listed.
Affected models and serial ranges
W3277 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 W3277 mean?
It means the ACS controller had established communication with the remote control receiver but then lost contact with it. The engine shuts down and traction plus workgroup functions are disabled until the issue is fixed.
Can I still drive or operate attachments with W3277 active?
No. Bobcat's design response to this code disables both traction and workgroup functions and shuts down the engine, so the machine cannot be driven or used until the fault is cleared.
Do I need a scan tool to clear W3277?
No manual reset is required. The code is self-resetting once the actual cause (wiring, connector, fuse, or receiver issue) is repaired and the CAN link is reestablished.
Which fuses should I check first for W3277?
Check FC2 Fuse 1 with FRC1 Fuse 7 or Fuse 8, or on some harnesses Fuse 5 with Fuse 8. The exact fuse numbers depend on which harness revision your machine has.
Why does W3277 come and go instead of staying on?
Intermittent CAN faults are common with this code. Loose connections, corrosion, pushed-back pins, a marginal wire harness, or a flaky controller can all cause the link to drop briefly and then reestablish, which is why the fault may not be present when you go to test it.
Which Bobcat models can show W3277?
It applies to remote-control equipped S510, S530, S550, S570, S590, S630, S650, S750, S770, T550, T590, T630, T650, T750, T770, and T870 loaders.
Is W3277 an engine problem?
Not directly. The engine shutdown is a safety response to the lost remote control communication link, not a sign of an engine fault itself. The root cause is almost always in the CAN wiring, connectors, fuses, or the remote control receiver.