Bobcat A8202 (82-02) Fault Code: ACD/RACD Output "C" Error On
Also shown on the panel as 82-02 · Also called ACD Output ‘C’ Error On
ACD/RACD Output "C" Error On · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
A8202, shown on the panel as 82-02, sets when the ACD/RACD controller sees voltage on output "C" wire 5300 while it has not energized that attachment solenoid coil. The controller shuts off that output, the attachment on output "C" stops working, and the ACD/RACD icon on the right instrument panel blinks.
Medium severity. The affected attachment output is disabled until the fault is fixed, but the machine itself keeps running. Treat it as a diagnose-this-shift issue rather than an emergency, unless the attachment function is needed for a safety-critical task.
What does Bobcat error code A8202 mean?
A8202 is an electrical fault in Bobcat's ACD (Attachment Control Device) or RACD (Remote Attachment Control Device) system, which lets the controller switch power to attachment solenoids on demand. Output "C" is one of the switched circuits, wired through wire 5300 to an attachment solenoid coil.
The controller expects that when it has not commanded output "C" on, there should be no voltage present on that circuit. When it detects voltage there anyway, it assumes something is feeding power into the circuit from an unintended source, so it shuts the output down as a protective measure.
Once A8202 is active, the attachment function wired to output "C" will not operate, and the ACD/RACD icon on the right instrument panel blinks to alert the operator. This is Bobcat's way of preventing an attachment from being energized unexpectedly or uncontrollably.
Common causes of A8202
- Circuit output "C" wire 5300 to the attachment solenoid is shorted to a power source.
- A fault in the ACD/RACD controller itself.
- Moisture, corrosion, or pushed-back pins in the mainframe or attachment control harness connectors.
- If the code is intermittent and not active at the time of testing, the root cause may not be identifiable right away. Probable causes in that case include loose connections, corrosion, pushed-back pins, the controller, the wire harness, or a combination of these problems.
How to troubleshoot Bobcat A8202: first checks
- With the key switch in run/enter (on), check for the presence of the fault and confirm the ACD/RACD icon is blinking on the right instrument panel.
- Inspect the mainframe and attachment control harness connectors for moisture, corrosion, or pins that have pushed back out of their terminals.
- Trace wire 5300 from the attachment solenoid back through the harness, looking for chafed insulation or a short to a power source that could be feeding voltage into output "C" when it should be off.
- Check all connections along this circuit for looseness, since loose connections are listed as a probable cause, especially if the fault comes and goes.
- If no wiring fault is found and the harness checks out clean, suspect the ACD/RACD controller itself as the source of the fault.
How the code clears
Cycle power (turn the key switch off, then back on) after the repair is complete. No separate clearing step is listed beyond a power cycle.
Affected models and serial ranges
A8202 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 |
Frequently asked questions
What does Bobcat code A8202 mean?
It means the ACD/RACD controller found voltage on output "C" wire 5300 to an attachment solenoid when the controller itself had not sent power there. The controller shuts that output off and the attachment on output "C" stops functioning until the fault is resolved.
What is the panel display for A8202?
On the instrument panel it shows as 82-02, and the ACD/RACD icon on the right side of the panel will blink while the code is active.
Which Bobcat machines can show A8202?
It applies to S510, S530, S550, S570, S590, S630, S650, S750, S770, T550, T590, T630, T650, T750, and T770 skid steer and track loader models, as well as T870.
Can A8202 be an intermittent fault?
Yes. If the code is not active at the time of testing, the exact cause may not be identifiable right away. Likely contributors in intermittent cases include loose connections, corrosion, pushed-back pins, the controller, or the wire harness, alone or in combination.
Will my attachment work with A8202 active?
No. While the code is active, the ACD/RACD electric output is shut off, so the attachment function wired to output "C" will not operate.
How do I clear A8202 after fixing it?
Cycle the key switch off and back on. No other clearing procedure is listed.
Is A8202 caused by a bad controller or bad wiring?
It could be either. Listed causes include a short from wire 5300 to a power source, a faulty ACD/RACD controller, and moisture, corrosion, or pushed-back pins in the mainframe or attachment control harness connectors. Checking the wiring and connectors first is the practical starting point before condemning the controller.