AutoCodes – Dodge – B1643 Dodge

B1643 Dodge Code - Rear Left Turn Control Circuit Low

Quick Answer

The Total Integrated Power Module (TIPM) monitors the Rear Left Turn Control. Common causes include Faulty Rear Left Turn Signal Lamp, Rear Left Turn Signal Lamp harness is open or shorted, Rear Left Turn Signal 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
B1643 Dodge indicates Rear Left Turn Control Circuit Low.
Common causes
Common causes include Faulty Rear Left Turn Signal Lamp, Rear Left Turn Signal Lamp harness is open or shorted, Rear Left Turn Signal 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,123
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 28, 2019
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Code B1643 Dodge Description

The Total Integrated Power Module (TIPM) monitors the Rear Left Turn Control. The TIPM sets the OBDII code when the Rear Left Turn Control is not to factory specifications.
OBDII Code B1643 Dodge - Rear Left Turn Control Circuit Low - AutoCodes.com
B1643 Dodge Code - Rear Left Turn Control Circuit Low

What are the Possible Causes of the DTC B1643 Dodge?

  • Faulty Rear Left Turn Signal Lamp
  • Rear Left Turn Signal Lamp harness is open or shorted
  • Rear Left Turn Signal Lamp circuit poor electrical connection
  • Faulty Total Integrated Power Module (TIPM)

How to Fix the DTC B1643 Dodge?

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 B1643 Dodge 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 B1643 Dodge code?

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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 B1643 Dodge Code

1. What are the common symptoms of OBDII code B1643 in a Dodge related to the Rear Left Turn Control Circuit Low?

The common symptoms include the left turn signal not working properly or flashing at a faster rate than usual.

2. What are the possible causes of the Rear Left Turn Control Circuit Low OBDII code in a Dodge?

Potential causes include a faulty turn signal bulb, a damaged wiring harness, a malfunctioning turn signal switch, or a problem with the body control module.

3. How can I diagnose the issue causing the B1643 code in my Dodge?

You can start by visually inspecting the left turn signal bulb and its connections. Use a multimeter to test the continuity of the wiring and check for any loose or damaged connections.

4. What should I check first when troubleshooting the Rear Left Turn Control Circuit Low code in my Dodge?

Begin by checking the left turn signal bulb to ensure it is functioning properly and has the correct wattage. A faulty bulb is a common cause of this code.

5. Is it safe to continue driving my Dodge with the B1643 OBDII code related to the Rear Left Turn Control Circuit Low?

It is not recommended to drive with this code active, as it may lead to safety hazards due to the malfunctioning turn signal.

6. Can I reset the B1643 OBDII code in my Dodge without fixing the issue?

While you can clear the code with an OBDII scanner, it is crucial to address the underlying problem to prevent the code from reoccurring.

7. What are some repair tips for fixing the Rear Left Turn Control Circuit Low code in a Dodge?

Ensure all connections are secure, replace the turn signal bulb if necessary, and inspect the wiring harness for any damage or corrosion.

8. How much does it typically cost to repair the B1643 code in a Dodge at a mechanic's shop?

The cost can vary depending on the exact cause of the code, but it may range from $50 to $200 for parts and labor.

9. Can extreme weather conditions affect the Rear Left Turn Control Circuit and trigger the B1643 code in a Dodge?

Yes, extreme weather conditions such as water exposure or extreme temperatures can damage the wiring or connections, leading to the code being triggered.

10. Is the Rear Left Turn Control Circuit Low OBDII code common in Dodge vehicles?

While not extremely common, this code can occur in Dodge vehicles, especially in older models with electrical system issues.

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