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B17B1 Chrysler Code - Rear Right Trailer Turn Lamp Control Circuit Short To Battery

Quick Answer

The B17B1 diagnostic trouble code (DTC) indicates a fault in the rear right trailer turn lamp control circuit, specifically a short to battery. Common causes include Damaged or frayed wiring in the rear right turn lamp circuit, Corroded or loose connectors in the trailer wiring harness, Faulty turn signal relay or control module. 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
B17B1 Chrysler indicates Rear Right Trailer Turn Lamp Control Circuit Short To Battery.
Common causes
Common causes include Damaged or frayed wiring in the rear right turn lamp circuit, Corroded or loose connectors in the trailer wiring harness, Faulty turn signal relay or control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Oct 01, 2024
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Code B17B1 Chrysler Description

The B17B1 diagnostic trouble code (DTC) indicates a fault in the rear right trailer turn lamp control circuit, specifically a short to battery. This code is prevalent in Chrysler vehicles equipped with a trailer tow package and is related to the vehicle's lighting and towing systems. When this code is triggered, it signifies that the control circuit for the rear right turn signal lamp is receiving an unexpected voltage level, typically due to a direct short to the battery voltage.

OBDII Code B17B1 Chrysler - Rear Right Trailer Turn Lamp Control Circuit Short To Battery
B17B1 Chrysler Code - Rear Right Trailer Turn Lamp Control Circuit Short To Battery

Common Causes of B17B1 Chrysler

  1. Damaged or frayed wiring in the rear right turn lamp circuit.
  2. Corroded or loose connectors in the trailer wiring harness.
  3. Faulty turn signal relay or control module.
  4. Water intrusion or moisture buildup in the wiring harness.
  5. Incorrectly installed or damaged trailer wiring components.

Symptoms of B17B1 Chrysler

  1. Rear right turn signal lamp not functioning or flickering.
  2. Trailer lighting system malfunctioning or not responding.
  3. Dashboard warning lights illuminated, indicating a fault in the lighting system.
  4. Increased electrical draw on the vehicle's battery, potentially leading to battery drain.
  5. Visual inspection reveals burnt or damaged wiring in the trailer harness.

How to Fix B17B1 Chrysler

  1. Visual Inspection: Begin with a thorough visual inspection of the wiring harness, connectors, and the rear right turn lamp assembly for any visible signs of damage, corrosion, or loose connections.
  2. Test Circuit Voltage: Use a multimeter to check the voltage levels in the rear right turn lamp circuit. This will help identify if there is a short to battery or other electrical issues.
  3. Repair or Replace Wiring: If damaged wiring is found, repair or replace the affected sections of the wiring harness. Ensure all connections are secure and free from corrosion.
  4. Inspect and Replace Components: Check the turn signal relay and control module for proper operation. Replace any faulty components as necessary.
  5. Re-test the System: After repairs are made, re-test the turn signal system to ensure the rear right turn lamp functions correctly and that the B17B1 code has cleared from the vehicle’s computer.

Cost to Fix B17B1 Chrysler

** The repair costs for addressing the B17B1 code can vary widely based on the extent of the damage and the specific repairs needed. On average, the total cost may range from $150 to $600. This estimate includes parts such as wiring harnesses, connectors, and possibly a new relay or control module, along with labor costs.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B17B1 Chrysler Code

1. What are common symptoms of OBDII code B17B1 in a Chrysler vehicle?

The common symptoms of OBDII code B17B1 include the rear right trailer turn lamp not functioning properly, a warning light on the dashboard, and potential issues with the turn signals.

2. What does the OBDII code B17B1 in a Chrysler indicate?

OBDII code B17B1 in a Chrysler indicates a short to battery in the rear right trailer turn lamp control circuit.

3. What are the possible causes of OBDII code B17B1 in a Chrysler?

Possible causes of OBDII code B17B1 include a short circuit in the wiring, a faulty trailer turn lamp, a malfunctioning control module, or corroded connectors.

4. How can I diagnose the OBDII code B17B1 in my Chrysler?

Diagnosing OBDII code B17B1 involves visually inspecting the wiring and connectors, testing the trailer turn lamp, checking the control module, and using a multimeter to detect shorts.

5. Can I still drive my Chrysler with OBDII code B17B1 present?

It is not recommended to drive your Chrysler with OBDII code B17B1 present, as it may affect the operation of the turn signals and compromise safety.

6. How can I repair OBDII code B17B1 in my Chrysler?

Repairing OBDII code B17B1 involves fixing the short circuit in the rear right trailer turn lamp control circuit, replacing any damaged components, and clearing the trouble code with a scan tool.

7. Do I need specialized tools to fix OBDII code B17B1 in my Chrysler?

While basic tools like a multimeter and a wrench may be sufficient for diagnosing and repairing OBDII code B17B1, specialized tools such as a scan tool for code clearing may also be required.

8. Can OBDII code B17B1 in a Chrysler be a recurring issue?

OBDII code B17B1 in a Chrysler can be a recurring issue if the root cause, such as a faulty wiring harness or control module, is not properly addressed during the repair process.

9. Is it necessary to visit a mechanic for OBDII code B17B1 repair in my Chrysler?

While some DIY enthusiasts may be able to diagnose and repair OBDII code B17B1 in their Chrysler, seeking professional help from a mechanic is recommended for accurate diagnosis and proper repair.

10. How can I prevent OBDII code B17B1 from occurring in my Chrysler in the future?

To prevent OBDII code B17B1 from occurring in the future, regularly inspect the trailer turn lamp wiring, connectors, and control module for signs of damage or wear, and address any issues promptly.

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