B17D4 Code - Headlamp Status Output Circuit Low
Quick Answer
The Multi-Purpose Module (Police And Taxi Interface Module (PTIM)) has detected the Headlamp Switch Sense circuit below a calibrated value. Common causes include Faulty Headlamp Switch Sense, Headlamp Switch Sense harness is open or shorted, Headlamp Switch Sense 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
- B17D4 indicates Headlamp Status Output Circuit Low.
- Common causes
- Common causes include Faulty Headlamp Switch Sense, Headlamp Switch Sense harness is open or shorted, Headlamp Switch Sense 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 B17D4 Description
What are the Possible Causes of the DTC B17D4?
- Faulty Headlamp Switch Sense
- Headlamp Switch Sense harness is open or shorted
- Headlamp Switch Sense circuit poor electrical connection
- Faulty Multi-Purpose Module (Police And Taxi Interface Module (PTIM))
How to Fix the DTC B17D4?
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 B17D4 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.
Need more information about the B17D4 code?
Need more information on how to fix the B17D4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B17D4 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B17D4 Chrysler — Headlamp Status Output Circuit Low
- B17D4 Dodge — Headlamp Status Output Circuit Low
- B17D4 Jeep — Headlamp Status Output Circuit Low
- B17D4 RAM — Headlamp Status Output Circuit Low
Frequently Asked Questions about B17D4 Code
1. What are the common symptoms of OBDII code B17D4 (Headlamp Status Output Circuit Low)?
The common symptoms of this code may include dim or flickering headlights, the headlight not turning on at all, or dashboard warning lights related to headlight issues.
2. What can cause the OBDII code B17D4 to be triggered?
This code is typically triggered by a malfunction in the headlamp control module, a faulty headlight switch, damaged wiring or connectors in the headlamp circuit, or a defective headlamp bulb.
3. How can I diagnose the OBDII code B17D4 on my vehicle?
To diagnose this code, you can use an OBDII scanner to retrieve the specific fault code. Additionally, inspecting the headlamp control module, headlight switch, wiring, and connectors for any visible damage can help pinpoint the issue.
4. What are some repair tips for resolving OBDII code B17D4?
Repair tips may include checking and replacing any blown fuses related to the headlamp circuit, inspecting and repairing damaged wiring or connectors, replacing the headlamp control module or headlight switch if faulty, and ensuring the headlamp bulbs are in good working condition.
5. Can I continue driving my vehicle with OBDII code B17D4 present?
It is not recommended to drive your vehicle with this code present, as it can affect your visibility on the road and compromise safety. It is advised to address the issue promptly to ensure proper headlight functionality.
6. How much does it typically cost to repair OBDII code B17D4?
The cost of repairing this code can vary depending on the underlying cause of the issue. Costs may include replacement parts, labor charges, and diagnostic fees. It is recommended to consult with a professional mechanic for an accurate estimate.
7. Is OBDII code B17D4 a serious issue that requires immediate attention?
While the severity of the issue may vary, it is important to address this code promptly to ensure proper headlight functionality and maintain safety while driving, especially during nighttime or low visibility conditions.
8. Can I reset OBDII code B17D4 myself, or do I need a mechanic to clear it?
You can attempt to clear this code yourself using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, if the underlying issue is not resolved, the code is likely to reappear. A mechanic can help diagnose and fix the root cause of the problem.
9. Are there any preventive measures to avoid OBDII code B17D4 in the future?
Regularly inspecting and maintaining your vehicle's headlamp system, including checking for any signs of damage or wear, can help prevent issues that may trigger this OBDII code. Additionally, addressing any headlight-related problems promptly can help avoid more serious issues down the line.
10. How long does it typically take to repair OBDII code B17D4?
The repair time for this code can vary based on the specific cause of the issue and the complexity of the repair. Simple fixes like replacing a blown fuse may take a short amount of time, while more involved repairs like replacing the headlamp control module can take longer.
Discuss the causes and fixes for B17D4 OBDII Code
Code B17D4 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
