B2298 — air discharge temperature sensor panel – short to ground

Does B2298 mean the HVAC blower motor is defective?

Not necessarily. B2298 identifies a short-to-ground condition involving the air discharge temperature sensor circuit; the blower may still operate normally while temperature control is inaccurate.

Can the vehicle be driven with B2298 stored?

Usually, yes. Driving is generally acceptable if heating, cooling, and defrosting remain serviceable, but the fault should be diagnosed before the climate-control symptoms worsen.

What is the most common repair for B2298?

The usual repair is correction of a damaged or corroded harness or connector, although the air discharge temperature sensor itself can fail internally and require replacement.

Why does B2298 return after the code is cleared?

The underlying grounded wire, bad connector, failed sensor, or poor circuit reference remains present. Simply erasing B2298 does not restore the air discharge temperature circuit.

When your vehicle's control unit logs B2298, it means the engine computer has spotted a problem somewhere in the body electrical system. B2298 falls under the manufacturer-controlled DTC category, which simply tells you the fault lives in the cabin or body side of the vehicle rather than the powertrain. The code triggers when live sensor data strays outside the factory-set parameters, typically after several drive cycles have passed. You will almost always get a freeze-frame snapshot alongside the code — that snapshot records engine speed, load, coolant temperature and vehicle speed at the exact moment the fault appeared, and pulling it first will steer your diagnosis in the right direction faster.

The body control module runs most of the convenience features in your car: power locks, windows, interior and exterior lighting, windshield wipers, and various actuators. When B2298 sets, one of these subsystems has reported abnormal data back to the BCM or main ECU. It does not necessarily mean the BCM itself is dead — the fault could just as easily be a flaky switch, a broken wire, or water getting into a connector. The code is a flag, not a verdict.

Symptoms of B2298

• In most cases the engine runs and drives completely normally — B2298 rarely touches fuel delivery or ignition.
• The specific function tied to the fault (power locks, windows, lights, wipers) may work intermittently or quit entirely.
• A warning light may illuminate on the instrument cluster, though not every time.
• No other driveability symptoms usually accompany the code.
• If exterior lighting is involved, you may notice one or more lights failing to turn on.
• Wipers may stop responding or operate in only one speed.
• Central locking can become unresponsive, which carries a minor security concern.

Common causes of B2298

• Broken or chafed wiring, especially in door jambs and other areas exposed to moisture or flexing.
• Connectors that are corroded, pushed back partially, or otherwise making poor contact.
• A blown fuse or a relay that has stopped switching properly.
• A fault inside the body control module itself — less common but possible on higher-mileage vehicles.
• A failed switch, motor, or actuator in whatever subsystem is reporting the problem.
• Water intrusion in connectors near the tailgate or sunroof, where seals tend to age.
• Aftermarket accessories wired incorrectly, creating a short or signal conflict.

How to diagnose B2298

Start by connecting a quality OBD2 scanner and confirming B2298 is stored in the system. Save the freeze-frame data before you clear anything — those engine conditions tell you whether the fault appeared at idle, highway speed, or during a specific maneuver, which narrows the suspects.

Next, check for any related trouble codes. B2298 frequently appears alongside other body-system codes (B0xxx series) that point directly to the failing component. Also look up TSBs for your specific make, model, and year on the manufacturer's site or nhtsa.gov — many body electrical faults have factory-issued software updates or wiring harness fixes.

Visually inspect the wiring harness and connectors associated with the affected function. Look for frayed insulation, broken strands hidden under tape, greenish corrosion, or connectors that are unlatched. Pay extra attention to flex points: the wiring that travels through door hinges and the tailgate opening is under constant motion and fails first.

Operate the suspected function while monitoring live data on your scanner. Watch the switch signal PID and motor feedback PID if available. A switch that shows correct input but no motor response suggests the motor or its ground is bad.

After checking connectors and wiring at flex points, clear the code and run a complete drive cycle — including the conditions from the freeze frame. If B2298 returns, you have narrowed the problem to a hard fault rather than an intermittent one.

Repair options and costs for B2298

Tackle the inexpensive and likely causes before spending big on a new BCM:

• Replace the faulty switch, motor, or actuator — parts and labor run roughly $120–$450 depending on the part and your shop's labor rate.
• BCM repair or full replacement — expect $300–$900 for the module itself plus programming if needed.
• Repair wiring or connectors — fixing broken wires, soldering a bad joint, or replacing a connector body typically costs $80–$250.

Total cost to fix B2298

The actual spend depends entirely on which part is at fault. A simple switch or connector repair lands on the low end; a new BCM pushes toward the upper limit. Across all scenarios, most shops will quote somewhere between $80 and $900. Spending time on a careful diagnosis before buying parts will almost always keep you out of the $900 scenario — the BCM replacement is rarely the first thing to check.

Can you drive with B2298?

B2298 is generally safe to drive. Body codes almost never affect engine performance, transmission shifting, or braking. The main exceptions are functions that matter for safety in poor conditions: non-working exterior lights, inoperable wipers during rain or snow, and central locking faults that leave the vehicle unsecured. If any of those systems are affected, address the repair sooner rather than later. Otherwise, you can schedule the fix at your convenience without risking the car.

Related OBD2 codes

• B2200: No Communication to TV Module (No Fitting of TV)
• B2201: No Communication With Traffic MasterModule
• B2202: No Communication to VICS Module (No Fitting of VICS)
• B2203: CD-ROM Error
• B2204: GPS Antenna Connection Open or Short
• B2205: GPS Receiver Error