B2338 Dodge Code - Horn Control Circuit Open
Quick Answer
The Front Control Module (FCM) monitors the Horn Control Circuit. Common causes include Faulty Horn Fuse, Faulty Horn Relay, Horn Relay harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2338 Dodge indicates Horn Control Circuit Open.
- Common causes
- Common causes include Faulty Horn Fuse, Faulty Horn Relay, Horn Relay harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2338 Dodge Description
What are the Possible Causes of the DTC B2338 Dodge?
- Faulty Horn Fuse
- Faulty Horn Relay
- Horn Relay harness is open or shorted
- Horn Relay circuit poor electrical connection
- Faulty Front Control Module (FCM)
How to Fix the DTC B2338 Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2338 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B2338 Dodge Code
1. What does the OBDII code B2338 on a Dodge mean?
Code B2338 indicates an open circuit in the horn control system, meaning there’s an electrical fault preventing the horn from functioning properly.
2. What are the common symptoms of the B2338 Dodge code?
The most common symptom is that the horn will not work when pressed. You may also notice the horn may sound weak or intermittently.
3. What causes the B2338 code to appear on a Dodge vehicle?
Common causes include a damaged horn relay, a broken horn switch, corroded or damaged wiring, or a faulty horn assembly.
4. How can I diagnose the B2338 Dodge code?
Start by inspecting the horn fuse, relay, and wiring for damage or corrosion. Use a multimeter to check for continuity in the horn circuit and verify if the switch is functioning.
5. Can a blown fuse cause the B2338 Horn Control Circuit Open code?
Yes, a blown horn fuse can interrupt the circuit and trigger the B2338 code. Check and replace the fuse if necessary.
6. How do I fix the B2338 code on my Dodge?
Repairs may include replacing a blown fuse, repairing or replacing damaged wiring, replacing the horn relay, or installing a new horn switch.
7. Is it safe to drive with the B2338 code on my Dodge?
While it’s safe to drive, the horn is a critical safety feature. It’s important to address the issue promptly to ensure the horn functions in emergencies.
8. Can a faulty clock spring cause the B2338 code on a Dodge?
Yes, a malfunctioning clock spring in the steering wheel can cause an open circuit, as it connects the horn button to the horn system.
9. How much does it cost to fix the B2338 Dodge code?
Repair costs vary depending on the issue. Fuse or relay replacements may cost $20-$50, while wiring or horn assembly repairs could cost $100-$200 or more.
10. Can I clear the B2338 code without fixing the issue?
You can clear the code with an OBDII scanner, but it will likely return unless the underlying problem is resolved.
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