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B1640 Chrysler Code - Front Right Turn Control Circuit High

Quick Answer

The B1640 Chrysler code indicates a fault in the Front Right Turn Control Circuit, specifically that the circuit is reading a high voltage signal when it should not be. Common causes include Short circuit in the front right turn signal wiring, Faulty turn signal relay, Damaged turn signal switch. 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
B1640 Chrysler indicates Front Right Turn Control Circuit High.
Common causes
Common causes include Short circuit in the front right turn signal wiring, Faulty turn signal relay, Damaged turn signal switch.
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 Sep 11, 2024
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Code B1640 Chrysler Description

The B1640 Chrysler code indicates a fault in the Front Right Turn Control Circuit, specifically that the circuit is reading a high voltage signal when it should not be. This issue can affect the vehicle's turn signal functionality, causing the front right turn signal to malfunction or not work at all. The turn signal system is an essential safety feature that alerts other drivers of your intentions on the road, so it is crucial to address this issue promptly.

OBDII Code B1640 Chrysler - Front Right Turn Control Circuit High
B1640 Chrysler Code - Front Right Turn Control Circuit High

Common Causes of B1640 Chrysler

  1. Short circuit in the front right turn signal wiring
  2. Faulty turn signal relay
  3. Damaged turn signal switch
  4. Corrosion in the electrical connections
  5. Faulty front right turn signal bulb

Symptoms of B1640 Chrysler

  1. Front right turn signal not working
  2. Rapid blinking of the front right turn signal
  3. Dashboard indicator for turn signal flashing rapidly or staying on
  4. Turn signal indicator on the stalk not functioning

How to Fix B1640 Chrysler

  1. Begin by conducting a visual inspection of the front right turn signal wiring and connections to look for any visible damage or corrosion.
  2. Test the turn signal relay to ensure it is functioning properly or replace it if necessary.
  3. Check the turn signal switch for any signs of damage or wear and replace it if needed.
  4. Inspect the front right turn signal bulb and replace it if it is burned out or damaged.
  5. Clear the diagnostic trouble codes from the vehicle's system and test the turn signal functionality to ensure the issue has been resolved.

Cost to Fix B1640 Chrysler

The cost of repairing the Front Right Turn Control Circuit High issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost for this issue typically falls in the range of $150 to $500. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the shop's labor rates. Be sure to consult with a qualified mechanic or repair shop for a more accurate cost estimate tailored to your specific situation.

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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 B1640 Chrysler Code

1. What are the common symptoms of OBDII code B1640 in a Chrysler vehicle?

- Common symptoms include the front right turn signal not working, fast blinking of the turn signal, or the turn signal staying on constantly.

2. What can cause the OBDII code B1640 "Front Right Turn Control Circuit High" in a Chrysler?

- Possible causes may include a faulty turn signal bulb, a malfunctioning turn signal switch, a damaged wiring harness, or a problem with the turn signal relay.

3. How can I diagnose the OBDII code B1640 in my Chrysler for the front right turn control circuit high error?

- You can start by visually inspecting the front right turn signal bulb, checking the turn signal switch operation, and testing the wiring for any signs of damage or corrosion.

4. Can a bad fuse trigger the OBDII code B1640 in a Chrysler front right turn signal circuit?

- Yes, a blown fuse related to the front right turn signal circuit can cause the B1640 code to appear. Check the fuse box for any blown fuses and replace as needed.

5. What are some repair tips for fixing the OBDII code B1640 in a Chrysler front right turn signal circuit?

- Repair tips may include replacing the front right turn signal bulb, repairing or replacing damaged wiring, testing and possibly replacing the turn signal switch, and checking the turn signal relay.

6. Is it safe to continue driving my Chrysler with the OBDII code B1640 active for the front right turn control circuit high error?

- It is not recommended to drive with a malfunctioning turn signal as it can compromise your safety on the road. It is best to address the issue promptly.

7. How do I reset the OBDII code B1640 in my Chrysler after repairing the front right turn control circuit high issue?

- After repairing the issue causing the B1640 code, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes to clear the error code.

8. Can extreme weather conditions affect the front right turn control circuit and trigger the OBDII code B1640 in a Chrysler?

- Yes, extreme weather conditions such as moisture, snow, or extreme heat can damage the wiring or components in the turn signal circuit, leading to the B1640 error code.

9. Will the OBDII code B1640 in a Chrysler reset itself after a certain number of drive cycles?

- In some cases, the B1640 code may reset itself after several successful drive cycles if the underlying issue has been resolved. However, it is recommended to diagnose and fix the problem to prevent it from reoccurring.

10. Can a DIY enthusiast without much car repair experience fix the OBDII code B1640 in a Chrysler front right turn control circuit high error?

- Depending on the root cause of the issue, some repairs related to the B1640 code may be straightforward and suitable for DIY enthusiasts with basic tools and some guidance. However, complex electrical issues may require professional diagnosis and repair.

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