Bobcat A8432 (84-32) Fault Code: ACD/RACD Output “E” Over Current
Also shown on the panel as 84-32 · Also called ACD Output ‘E’ Overcurrent
ACD/RACD Output “E” Over Current · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
A8432 (panel display 84-32) sets when the Bobcat ACD/RACD controller detects too much current on the Output "E" solenoid circuit, through the return wire at controller pin J1 A-26. The controller shuts down Output "E" to protect its internal driver. This affects attachment control functions on E-series excavators and S/T-series loaders and shows up with the key switch or run/enter on.
Medium severity. Output "E" is disabled when this code is active, so whatever attachment function runs through that output will stop working. It will not usually strand the machine or cause immediate damage, but it should be diagnosed before relying on that attachment circuit again.
What does Bobcat error code A8432 mean?
A8432 is set by the ACD/RACD controller (Attachment Control Device / Remote Attachment Control Device) when it senses that the current flowing through the Output "E" solenoid circuit is higher than the controller's output driver can safely handle. To protect itself from damage, the controller disables Output "E" as soon as it detects the overcurrent condition.
This is an electrical protection code, not a hydraulic pressure or mechanical fault code by itself. The root cause is almost always a wiring short or a failing solenoid coil pulling excess current, and the controller is simply reacting to protect its circuitry.
Because Output "E" is disabled once the code sets, whatever attachment function that output controls will stop responding until the fault is found and the code is cleared.
Common causes of A8432
- Return wire at controller pin J1 A-26 shorted to supply voltage, or shorted to Output "E" at controller pin J1 B-26.
- Failed or shorted Output "E" solenoid.
- Fault inside the ACD/RACD controller itself.
- Moisture, corrosion, or pushed-back pins in the ACD/RACD controller connectors, mainframe harness, attachment control harness, or the Output "E" solenoid connector.
- Intermittent fault: if the code is not active at the time of testing, the cause may not be found immediately. Probable causes for intermittent faults include loose connections, corrosion, pushed-back pins, the controller itself, the wire harness, or a combination of these.
How to troubleshoot Bobcat A8432: first checks
- With the key switch or run/enter on, check whether A8432 is currently active or was logged historically. An intermittent code may not show a fault at the moment of testing.
- Inspect the ACD/RACD controller connectors, mainframe harness connectors, attachment control harness connectors, and the Output "E" solenoid connector for moisture, corrosion, or pushed-back (backed-out) pins.
- Check the return wire at controller pin J1 A-26 for a short to supply voltage or a short to the Output "E" wire at controller pin J1 B-26.
- Test the Output "E" solenoid itself for an internal short or damage that would cause it to draw excess current.
- If wiring and the solenoid check out, suspect the ACD/RACD controller as the source of the fault.
- Wiggle-test harness connectors and wiring while watching for the code to reset, since intermittent faults often only show up under vibration or movement.
How the code clears
Once the repair is complete, clear the code by cycling power (turning the key switch off and back on). No separate clearing procedure or reset sequence is listed for this code.
Affected models and serial ranges
A8432 appears in our records across 20 Bobcat models. Match your machine by model and serial number.
| Model | Serial ranges |
|---|---|
| E35 | SN A93K110001-99999, SN AC2P11001-99999 |
| E42 | SN AG3411001-99999 |
| E45 | SN AG3G11001-99999, SN AHHC11001-99999 |
| E55 | SN ARWM11001-99999, SN ASW311001-99999 |
| 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 A3NT10001-12369, 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 A8432 mean?
It means the ACD/RACD controller detected too much current flowing through the Output "E" solenoid circuit, at the return wire on controller pin J1 A-26, and shut that output off to protect itself from damage.
What is the panel display number for A8432?
On the display panel it appears as 84-32.
Will my attachment stop working with this code active?
Yes. Once A8432 sets, the controller disables Output "E", so any attachment function that runs through that output will not operate until the fault is fixed and the code is cleared.
What usually causes A8432?
The most common causes are a short in the return wire at pin J1 A-26 (either to supply voltage or to the Output "E" wire at pin J1 B-26), a failed Output "E" solenoid, moisture or corrosion in the connectors, or pushed-back pins. The ACD/RACD controller itself can also be the cause.
How do I clear code A8432 after repair?
Cycle the key switch off and back on. No other reset steps are listed for this code.
Which machines can show code A8432?
It applies to Bobcat E35, E42, E45, E55 excavators and S510, S530, S550, S570, S590, S630, S650, S750, S770 skid-steer loaders and T550, T590, T630, T650, T750, T770, T870 compact track loaders, wherever the machine uses an ACD/RACD attachment controller.
The code won't show up when I test it. What now?
That points to an intermittent fault. Check for loose connections, corrosion, and pushed-back pins in the connectors first, since these are the most common intermittent causes, along with harness damage or a marginal controller.