B1668 — Mirror Driver Right/Left Motor Stalled #

Note: The code description may vary depending on the vehicle manufacturer.

• Mirror Driver Right Motor Stalled (Ford, Lincoln, Mercury)
• Mirror Driver Left Motor Stalled (Chrysler, Dodge, Jeep, RAM)
• Exterior Mirror Motor Stalled (General Motors, Chevrolet, GMC)
• Power Side Mirror Motor Stalled (Toyota, Lexus)

Summary of code B1668 #

The B1668 diagnostic trouble code (DTC) indicates that the power mirror motor on either the driver’s right or left side has stalled, meaning the motor is not operating as intended. This code is set when the vehicle’s body control module (BCM) — the computer responsible for many electrical systems — detects that the mirror motor has stopped moving or is drawing excessive current, suggesting a mechanical or electrical issue. The code may be specific to either the left or right side, depending on the system’s design and the manufacturer’s terminology. B1668 is a Body (B-series) code, which means it relates to vehicle body systems rather than engine or transmission controls. While this issue does not affect vehicle drivability, it can compromise convenience and safety by limiting mirror adjustment.

Common symptoms for code B1668 #

A B1668 code often presents itself through noticeable changes in how your power mirrors function. If you’ve ever tried to adjust your side mirror and found it unresponsive or stuck, you might be experiencing the symptoms of this code. In most cases, the issue is isolated to one side, depending on which motor has stalled.

• Inoperative power mirror (usually only one side is affected)
• Mirror stuck in one position despite switch input
• Clicking or grinding noises from mirror motor area
• Mirror does not respond to memory seat/mirror recall functions
• Possible warning message or indicator on the dashboard (on some vehicles)

Most likely causes for code B1668 #

Like any complex electrical system, the power mirror mechanism relies on several components working in harmony. A stall can result from anything that blocks, overloads, or disconnects the motor. The following list ranks probable causes from most to least frequent:

1. Faulty mirror motor: The motor itself is worn out, seized, or internally shorted.
2. Obstruction or physical jam: Dirt, ice, or debris is preventing the mirror from moving.
3. Damaged wiring or connector: Broken, corroded, or loose wires interrupting power or signal.
4. Faulty mirror control switch: The input device is not sending the correct signal.
5. Failed Body Control Module (BCM): The module that controls the mirror logic is malfunctioning (rare).

Step-by-step diagnosis for code B1668 #

Diagnosing a B1668 code is a systematic process, much like tracing a path through an electrical city. Patience and attention to detail are key. Here’s how a seasoned technician would approach it:

• Verify the complaint: Test mirror operation from the switch and memory functions.
• Inspect for obvious obstructions: Check the mirror housing for ice, debris, or physical damage.
• Listen for abnormal sounds: Clicking, grinding, or no sound at all can pinpoint the problem area.
• Check fuse and power supply: Ensure the mirror circuit is getting voltage.
• Test mirror switch operation: Use a multimeter or scan tool to confirm switch outputs.
• Inspect and test wiring/connectors: Look for corrosion, broken wires, or loose connections near the door hinge and mirror base.
• Test the mirror motor directly: Apply 12V and ground directly to the motor terminals to see if it moves.
• If all else passes, test/replace the BCM: This is a last resort, as BCM failures are uncommon.

Possible repairs for code B1668 #

Repairing a B1668 code is all about targeting the root cause. Each repair action should be linked directly to what you found during diagnosis. Here are the most effective solutions:

• Replace the faulty mirror motor (most common fix)
• Remove blockage or debris from the mirror housing
• Repair or replace damaged wiring and connectors
• Replace the mirror control switch if found defective
• Replace the Body Control Module (very rare)

Is it safe to drive with code B1668? #

Yes, you can generally continue driving with a B1668 code, but with limitations. The code does not impact critical vehicle functions like steering, braking, or acceleration. However, your ability to adjust the side mirror for optimal visibility is compromised, which might create blind spots and reduce safety when changing lanes or parking. If you rely on memory functions or share your vehicle with other drivers, this issue could be more inconvenient. Address the problem as soon as possible to maintain safe driving conditions.

Vehicles most commonly affected by code B1668 #

While B1668 can appear on many modern vehicles equipped with power mirrors, some OEMs and models are more frequently associated with this code due to common design or wear patterns.

• Ford F-series, Escape, Explorer, Fusion (Ford/Lincoln/Mercury)
• Chrysler 200, Dodge Ram, Jeep Grand Cherokee (Chrysler/Dodge/Jeep/RAM)
• Chevrolet Silverado, GMC Sierra, Cadillac Escalade (General Motors)
• Toyota Camry, Tacoma, Lexus RX (Toyota/Lexus)
• Honda Accord, CR-V (less common but possible)

Common mistakes & best practices with code B1668 #

When troubleshooting a B1668, haste and assumptions are the enemy. Avoiding these common mistakes will save time, money, and frustration:

• Replacing the mirror motor without first checking for obstructions or wiring problems
• Overlooking simple issues like blown fuses or disconnected connectors
• Forgetting to check both manual and memory switch functions
• Ignoring signs of water intrusion or corrosion in the door panel
• Not verifying repair by clearing the code and retesting the system

Quick FAQ for code B1668 #

Even seasoned drivers have questions when a new code pops up. Here are answers to the most common queries:

Q: Can I reset the B1668 code by disconnecting the battery?
A: Disconnecting the battery may temporarily reset the code, but it will return if the underlying issue is not resolved. Proper diagnosis and repair are required.

Q: Is it expensive to fix a B1668 code?
A: Costs vary widely. If the issue is a simple blockage or wiring fault, repairs can be inexpensive. Replacing a mirror motor or switch is moderately priced, while a BCM replacement is rare and costly.

Q: Do I need special tools to diagnose B1668?
A: Basic electrical tools like a multimeter, test light, and scan tool are sufficient for most diagnostics. Some mirror assemblies may require special trim tools for removal.

If you need further assistance, consult your vehicle’s service manual or contact a qualified technician. Addressing B1668 – Mirror Driver Right/Left Motor Stalled early ensures your mirrors stay as flexible as your driving needs.