AutoCodes – RAM – B17B1 RAM

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

Quick Answer

Four relays are used to provide voltage to the Trailer Tow connector. Common causes include Faulty Rear Right Trailer Turn Lamp, Rear Right Trailer Turn Lamp harness is open or shorted, Rear Right Trailer Turn Lamp 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: B17B1 RAM indicates Rear Right Trailer Turn Lamp Control Circuit Short To Battery.
Common causes: Common causes include Faulty Rear Right Trailer Turn Lamp, Rear Right Trailer Turn Lamp harness is open or shorted, Rear Right Trailer Turn Lamp 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.

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Code Popularity 644

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B17B1 RAM Description

Four relays are used to provide voltage to the Trailer Tow connector. The trailer tow relays are used to switch fused battery voltage directly to the Trailer Tow connector when requested. The trailer tow relays are activated through a ground path provided by the Body Control Module (BCM). The BCM sets the OBDII code when it detects a short to voltage on the Right Rear Trailer Turn Lamp Control circuit.

OBDII Code B17B1 RAM - Rear Right Trailer Turn Lamp Control Circuit Short To Battery - AutoCodes.com — B17B1 RAM Code - Rear Right Trailer Turn Lamp Control Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B17B1 RAM?

Faulty Rear Right Trailer Turn Lamp
Rear Right Trailer Turn Lamp harness is open or shorted
Rear Right Trailer Turn Lamp circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B17B1 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 B17B1 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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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 RAM Code

1. What are common symptoms of OBDII code B17B1 RAM?

- Common symptoms include the rear right trailer turn lamp not functioning properly, such as staying on constantly or not turning on at all.

2. What does the "Rear Right Trailer Turn Lamp Control Circuit Short To Battery" mean?

- This code indicates that there is a short circuit between the rear right trailer turn lamp control circuit and the battery, causing electrical issues.

3. What are possible causes of the B17B1 RAM OBDII code?

- Possible causes include damaged wiring, a faulty trailer turn lamp, a short circuit, or issues with the control circuit.

4. How can I diagnose the cause of the B17B1 RAM code?

- To diagnose this code, you can visually inspect the wiring, check for any visible damage, test the trailer turn lamp, and use a multimeter to test for shorts in the circuit.

5. Can I still drive my vehicle with the B17B1 RAM code?

- It is not recommended to drive your vehicle with this code as it can affect the functionality of your rear right trailer turn lamp, compromising safety.

6. How can I repair the B17B1 RAM OBDII code?

- Repairing this code involves locating and repairing the short circuit, replacing any damaged wiring or components, and ensuring proper connection of the trailer turn lamp.

7. Can I reset the B17B1 RAM code with an OBDII scanner?

- Yes, you can reset the code with an OBDII scanner, but it is important to address and repair the underlying issue causing the code to prevent it from reoccurring.

8. Are there any preventive measures to avoid the B17B1 RAM code?

- Regularly inspecting the trailer turn lamp wiring, ensuring proper installation of trailer accessories, and avoiding overloading the electrical system can help prevent this code.

9. Will the B17B1 RAM code cause my vehicle to fail an emissions test?

- While this code is related to trailer turn lamp control and may not directly impact emissions, it is still important to address and repair it before an emissions test to ensure overall vehicle safety.

10. Should I seek professional help to fix the B17B1 RAM code?

- If you are not experienced in electrical troubleshooting or automotive repair, it is recommended to seek professional help to properly diagnose and repair the B17B1 RAM code to ensure safety and effectiveness.