AutoCodes – RAM – B1661 RAM

B1661 RAM Code - Front Fog Lamp Control Circuit Open

Quick Answer

FRONT FOG LAMP CONTROL CIRCUIT HIGHThe Totally Integrated Power Module (TIPM) monitors the Front Fog Lamp Control. Common causes include Faulty Left or Right Front Fog Lamp Bulb, Left or Right Front Fog Lamp Bulb harness is open or shorted, Left or Right Front Fog 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: B1661 RAM indicates Front Fog Lamp Control Circuit Open.
Common causes: Common causes include Faulty Left or Right Front Fog Lamp Bulb, Left or Right Front Fog Lamp Bulb harness is open or shorted, Left or Right Front Fog 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 964

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 B1661 RAM Description

FRONT FOG LAMP CONTROL CIRCUIT HIGHThe Totally Integrated Power Module (TIPM) monitors the Front Fog Lamp Control. The TIPM sets the OBDII code when the Front Fog Lamp Control is not to factory specifications.

OBDII Code B1661 RAM - Front Fog Lamp Control Circuit Open - AutoCodes.com — B1661 RAM Code - Front Fog Lamp Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1661 RAM?

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

How to Fix the DTC B1661 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 B1661 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 B1661 RAM Code

1. What are the common symptoms of OBDII code B1661 RAM for the Front Fog Lamp Control Circuit Open?

- The common symptoms include the front fog lamps not turning on, flickering lights, or the front fog lamp indicator staying illuminated on the dashboard.

2. What are the possible causes of the Front Fog Lamp Control Circuit Open error code B1661 RAM?

- The causes can be a faulty fog lamp switch, damaged wiring or connectors in the fog lamp circuit, a blown fuse, or a malfunctioning control module.

3. How can I diagnose the Front Fog Lamp Control Circuit Open issue related to code B1661 RAM?

- You can start by checking the fuse for the fog lamps, inspecting the wiring and connectors for any damage, testing the fog lamp switch, and using a multimeter to check for continuity in the circuit.

4. Can a loose connection cause the B1661 RAM error code for the Front Fog Lamp Control Circuit Open?

- Yes, a loose or poor connection in the front fog lamp circuit can trigger the B1661 RAM error code due to an open circuit.

5. What are some repair tips for fixing the Front Fog Lamp Control Circuit Open problem associated with code B1661 RAM?

- Repair tips include checking and tightening all connections, replacing any damaged wires or connectors, testing and replacing the fog lamp switch if necessary, and resetting the error code with an OBDII scanner after repairs.

6. Is it safe to continue driving with the B1661 RAM error code for the Front Fog Lamp Control Circuit Open?

- It is generally safe to drive with this error code, but it is recommended to address the issue promptly to ensure proper functionality of the front fog lamps.

7. Can extreme weather conditions affect the Front Fog Lamp Control Circuit and trigger the B1661 RAM error code?

- Yes, extreme weather conditions like water exposure or extreme heat can cause corrosion or damage to the fog lamp circuit components, leading to the B1661 RAM error code.

8. Will resetting the error code B1661 RAM for the Front Fog Lamp Control Circuit Open fix the underlying issue?

- Resetting the error code will clear it temporarily, but it will not fix the root cause of the Front Fog Lamp Control Circuit Open problem. It is essential to diagnose and repair the issue to prevent the code from reoccurring.

9. Can a faulty front fog lamp itself cause the B1661 RAM error code to appear?

- While less common, a faulty front fog lamp could potentially cause the B1661 RAM error code if it is drawing too much current or has a short circuit.

10. How important are front fog lamps, and why should I address the B1661 RAM error code promptly?

- Front fog lamps provide increased visibility in adverse weather conditions, enhancing overall safety. Addressing the B1661 RAM error code promptly ensures that your front fog lamps function correctly when needed.