AutoCodes – Jeep – B166F Jeep

B166F Jeep Code - Right Trailer Tow Lamp Control Circuit Low

Quick Answer

The Totally Integrated Power Module (TIPM) monitors the Right Trailer Tow Lamp Control. Common causes include Faulty Right Trailer Tow Lamp Bulb, Right Trailer Tow Lamp Bulb harness is open or shorted, Right Trailer Tow Lamp Bulb 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: B166F Jeep indicates Right Trailer Tow Lamp Control Circuit Low.
Common causes: Common causes include Faulty Right Trailer Tow Lamp Bulb, Right Trailer Tow Lamp Bulb harness is open or shorted, Right Trailer Tow Lamp Bulb 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 1,446

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 Jun 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B166F Jeep Description

The Totally Integrated Power Module (TIPM) monitors the Right Trailer Tow Lamp Control. The TIPM sets the OBDII code when the Right Trailer Tow Lamp Control is not to factory specifications.

OBDII Code B166F Jeep - Right Trailer Tow Lamp Control Circuit Low - AutoCodes.com — B166F Jeep Code - Right Trailer Tow Lamp Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B166F Jeep?

Faulty Right Trailer Tow Lamp Bulb
Right Trailer Tow Lamp Bulb harness is open or shorted
Right Trailer Tow Lamp Bulb circuit poor electrical connection
Faulty Totally Integrated Power Module (TIPM)

How to Fix the DTC B166F Jeep?

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 B166F Jeep 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 B166F Jeep code?

Need more information on how to fix the B166F Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B166F Jeep code diagnosed by a professional: Find a repair shop in your area

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 B166F Jeep Code

1. What are the common symptoms of OBDII code B166F in a Jeep related to the Right Trailer Tow Lamp Control Circuit Low?

- Common symptoms may include a malfunctioning or dim right trailer tow lamp, flickering light, or a complete loss of function.

2. What are the possible causes of the OBDII code B166F in a Jeep indicating a Right Trailer Tow Lamp Control Circuit Low?

- Causes may include a faulty trailer tow lamp, damaged wiring or connectors, a defective control module, or a blown fuse.

3. How can I diagnose the OBDII code B166F in my Jeep for the Right Trailer Tow Lamp Control Circuit Low?

- Diagnosis involves visually inspecting the trailer tow lamp, checking the wiring and connectors for any visible damage, testing the control module, and verifying the fuse integrity.

4. Is it safe to continue driving my Jeep with the OBDII code B166F indicating a Right Trailer Tow Lamp Control Circuit Low?

- It is not recommended to drive with this issue unresolved, as it can compromise visibility and safety, especially when towing a trailer.

5. How can I repair the OBDII code B166F in my Jeep for the Right Trailer Tow Lamp Control Circuit Low?

- Repair may involve replacing the faulty trailer tow lamp, repairing or replacing damaged wiring and connectors, resetting the control module, or replacing a blown fuse.

6. Can I reset the OBDII code B166F in my Jeep myself after repairing the Right Trailer Tow Lamp Control Circuit Low issue?

- Yes, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes to clear the error code.

7. Are there any preventive maintenance tips to avoid encountering the OBDII code B166F related to the Right Trailer Tow Lamp Control Circuit Low in my Jeep?

- Regularly inspecting the trailer tow lamps, maintaining good wiring condition, and ensuring proper trailer connections can help prevent this issue.

8. Will the OBDII code B166F in my Jeep reset on its own after fixing the Right Trailer Tow Lamp Control Circuit Low problem?

- In some cases, the code may reset after a certain number of successful drive cycles once the issue is resolved, but it is recommended to manually clear it for immediate feedback.

9. Can extreme weather conditions affect the occurrence of the OBDII code B166F indicating a Right Trailer Tow Lamp Control Circuit Low in my Jeep?

- Yes, extreme weather conditions can potentially damage the trailer tow lamp or affect the wiring, leading to the triggering of this fault code.

10. Is it necessary to visit a professional mechanic to address the OBDII code B166F for the Right Trailer Tow Lamp Control Circuit Low in my Jeep?

- While some DIY repairs are possible, it is recommended to consult a professional mechanic for accurate diagnosis and repair of complex electrical issues like this one.