B237F RAM Code - Horn Mute Request Circuit High
Quick Answer
The Multi-Purpose Module (Police And Taxi Interface Module-PTIM) monitors the Horn Mute Request Circuit. Common causes include Faulty Horn Mute, Horn Mute harness is open or shorted, Horn Mute circuit poor electrical connection. 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
- B237F RAM indicates Horn Mute Request Circuit High.
- Common causes
- Common causes include Faulty Horn Mute, Horn Mute harness is open or shorted, Horn Mute circuit poor electrical connection.
- 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 B237F RAM Description
What are the Possible Causes of the DTC B237F RAM?
- Faulty Horn Mute
- Horn Mute harness is open or shorted
- Horn Mute circuit poor electrical connection
- Faulty Multi-Purpose Module (Police And Taxi Interface Module-PTIM)
How to Fix the DTC B237F RAM?
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 B237F RAM 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 B237F RAM Code
1. What does the OBDII code B237F RAM mean?
The code B237F RAM indicates a fault in the "Horn Mute Request Circuit," specifically that the circuit is reporting a high voltage condition.
2. What are common symptoms of the B237F code?
Symptoms may include the horn not functioning, the horn sounding unexpectedly, or the inability to mute the horn when intended.
3. What causes the B237F Horn Mute Request Circuit High code?
Common causes include a damaged horn relay, a short or open circuit in the wiring, a malfunctioning horn switch, or a faulty body control module (BCM).
4. Is the B237F code serious?
While it doesn't affect the drivability of the vehicle, it can compromise safety if the horn is non-functional or behaves erratically.
5. How can I diagnose the B237F code?
Start by inspecting the horn wiring and connectors for damage, check the horn relay and switch for functionality, and use a multimeter to test for proper voltage in the circuit.
6. Can a blown fuse cause the B237F code?
Yes, a blown horn fuse can contribute to this code, as it disrupts the circuit's normal operation.
7. How do I fix the B237F Horn Mute Request Circuit High issue?
Repairs may involve replacing the horn relay, repairing damaged wiring, replacing the horn switch, or reprogramming or replacing the BCM if necessary.
8. Can I clear the B237F code without repairs?
You can clear the code with an OBDII scanner, but it will likely return if the underlying issue isn’t resolved.
9. How much does it cost to fix the B237F code?
The cost depends on the specific issue, ranging from $20–$50 for a relay or fuse replacement to several hundred dollars if the BCM requires repair or replacement.
10. Can I drive my car with the B237F code active?
Yes, you can drive the car, but you should address the issue promptly to ensure the horn functions properly for safety purposes.
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