Bobcat H2332 (23-32) Fault Code: Rear Base Solenoid Over Current
Also shown on the panel as 23-32 · Also called Rear Base Output Overcurrent
Rear Base Solenoid Over Current · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
H2332 (panel display 23-32) sets when the auxiliary controller senses too much current flowing through the rear base solenoid return wire 2440, more than the output driver can safely handle. The controller shuts off the rear base solenoid to protect itself, which kills hydraulic flow to the rear auxiliary female coupler until the fault is fixed.
Medium severity. The rear base solenoid is disabled once this code sets, so the rear auxiliary hydraulic coupler will not work. This does not immediately threaten the engine or machine structure, but it does stop rear-mounted attachments from getting hydraulic flow and should be diagnosed before continuing attachment work.
What does Bobcat error code H2332 mean?
H2332 is a Bobcat auxiliary controller fault tied to the rear base solenoid circuit, which controls hydraulic flow to the rear auxiliary female coupler. The controller monitors current through the solenoid's return wire, labeled wire 2440. When that current exceeds what the output driver inside the controller can safely handle, the controller trips the fault to protect its own electronics.
Once H2332 sets, the controller disables the rear base solenoid outright. That means whatever attachment or function relies on the rear auxiliary coupler will lose hydraulic flow until the underlying electrical problem is found and corrected.
This code applies across a wide range of Bobcat skid-steer and compact track loader models, including the S510 through S770 and T550 through T870 lines.
Common causes of H2332
- Return wire 2440 shorted to supply voltage, or shorted to signal wire 4440
- A failed or failing rear base solenoid
- A fault inside the auxiliary controller itself
- Moisture, corrosion, or pushed-back pins in the auxiliary controller connectors, the rear base solenoid connector, or the mainframe harness
- Intermittent wiring or connection issues, loose connections, corrosion, pushed-back pins, controller problems, or a combination of these, especially if the code is not active at the time of testing
How to troubleshoot Bobcat H2332: first checks
- Confirm the key switch is in the run/enter position, since this is a required condition for the code to be active during diagnosis
- Inspect the rear base solenoid connector and the auxiliary controller connectors for moisture, corrosion, or pins that have pushed back out of their sockets
- Check wire 2440 for signs of chafing or shorting against supply voltage wiring or against signal wire 4440
- Trace the mainframe harness section feeding the rear base solenoid for damage, pinch points, or corrosion
- Test the rear base solenoid itself for an internal short or damage that could be pulling excess current
- If the code is not active during testing, treat it as intermittent and check all connections and harness sections along this circuit rather than assuming no problem exists
How the code clears
Cycle the key switch power off and back on after the repair is complete. No other reset procedure is listed for this code.
Affected models and serial ranges
H2332 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 H2332 mean?
It means the auxiliary controller detected too much current flowing through the rear base solenoid's return wire, wire 2440, more than its output driver can safely handle. The controller disables the rear base solenoid to prevent damage to itself.
What is the panel display number for H2332?
H2332 shows on the panel as 23-32.
Will my rear auxiliary hydraulics still work with H2332 active?
No. Once the code sets, the controller disables the rear base solenoid, which controls flow through the rear auxiliary female coupler. That coupler will not function until the fault is cleared and the cause repaired.
What usually causes H2332?
Common causes include wire 2440 shorted to supply voltage or to signal wire 4440, a failed rear base solenoid, a fault in the auxiliary controller, or moisture, corrosion, or pushed-back pins in the related connectors and mainframe harness.
How do I clear H2332 after repairs?
Cycle the key switch power off and back on. No separate clearing step is listed.
The code isn't showing right now, does that mean it's fixed?
Not necessarily. If the code is intermittent and not active during testing, the cause may still be present. Loose connections, corrosion, pushed-back pins, the controller, or the harness can all cause intermittent faults that don't show up during a quick check.
Which Bobcat models can show code H2332?
It applies to S510, S530, S550, S570, S590, S630, S650, S750, S770, T550, T590, T630, T650, T750, and T770 models.