AutoCodes – Generic – B1644

B1644 Code - Mirror Passenger Right Circuit Open

Quick Answer

The Body Control Module (BCM) monitors the Mirror Passenger Motor. Common causes include Faulty Mirror Passenger Motor, Mirror Passenger Motor harness is open or shorted, Mirror Passenger Motor 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: B1644 indicates Mirror Passenger Right Circuit Open.
Common causes: Common causes include Faulty Mirror Passenger Motor, Mirror Passenger Motor harness is open or shorted, Mirror Passenger Motor 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 10,290

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 May 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1644 Description

The Body Control Module (BCM) monitors the Mirror Passenger Motor. The BCM sets the OBDII code when the Mirror Passenger Motor is not to factory specifications.

OBDII Code B1644 - Mirror Passenger Right Circuit Open - AutoCodes.com — B1644 Code - Mirror Passenger Right Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1644?

Faulty Mirror Passenger Motor
Mirror Passenger Motor harness is open or shorted
Mirror Passenger Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1644?

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 B1644 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 B1644 code?

Need more information on how to fix the B1644 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1644 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1644 Chrysler — Rear Left Turn Control Circuit High
B1644 Dodge — Rear Left Turn Control Circuit High
B1644 Jeep — Rear Left Turn Control Circuit High
B1644 RAM — Rear Left Turn Control Circuit High

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 B1644 Code

1. What are the common symptoms of OBDII code B1644 (Mirror Passenger Right Circuit Open)?

The common symptoms of OBDII code B1644 include a non-functional or erratic operation of the passenger-side mirror.

2. What are the possible causes of OBDII code B1644 (Mirror Passenger Right Circuit Open)?

Possible causes of OBDII code B1644 include damaged wiring, a faulty mirror motor, or a defective mirror control switch.

3. How can I diagnose OBDII code B1644 (Mirror Passenger Right Circuit Open)?

To diagnose OBDII code B1644, you can use a scan tool to read the code, visually inspect the mirror wiring and connections, and test the mirror motor and control switch for proper operation.

4. What are some repair tips for fixing OBDII code B1644 (Mirror Passenger Right Circuit Open)?

Repair tips for OBDII code B1644 may include repairing or replacing damaged wiring, replacing the mirror motor if faulty, or replacing the mirror control switch if defective.

5. Can OBDII code B1644 (Mirror Passenger Right Circuit Open) be safely ignored?

While the vehicle may still be operable with OBDII code B1644, it is recommended to address the issue promptly to ensure proper functioning of the passenger-side mirror.

6. Is it possible to reset OBDII code B1644 (Mirror Passenger Right Circuit Open) without fixing the underlying issue?

Resetting OBDII code B1644 without fixing the underlying issue may temporarily clear the code, but it is likely to reappear until the root cause is addressed.

7. How much does it typically cost to repair OBDII code B1644 (Mirror Passenger Right Circuit Open)?

The cost of repairing OBDII code B1644 can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts needed.

8. Can I fix OBDII code B1644 (Mirror Passenger Right Circuit Open) myself, or do I need a professional mechanic?

Depending on your level of automotive repair experience, you may be able to fix OBDII code B1644 yourself by following diagnostic procedures and making necessary repairs. However, if you are unsure or uncomfortable with the process, it is recommended to seek the help of a professional mechanic.

9. Are there any preventative measures I can take to avoid OBDII code B1644 (Mirror Passenger Right Circuit Open)?

To prevent OBDII code B1644 from occurring, you can periodically inspect the mirror wiring and connections for any signs of damage or wear, and address any issues promptly before they escalate.

10. Can extreme weather conditions contribute to triggering OBDII code B1644 (Mirror Passenger Right Circuit Open)?

Extreme weather conditions, such as excessive heat or cold, may potentially affect the electrical components related to the passenger-side mirror, leading to issues that could trigger OBDII code B1644.