B1267 — Servo Motor Air Intake Right Circuit Failure #

Note: The description for code B1267 may differ depending on the OEM (Original Equipment Manufacturer). Always refer to your vehicle’s specific documentation for exact terminology.

• Right Air Intake Servo Motor Circuit Failure (Ford)
• Air Intake Servo Motor #2 Circuit Malfunction (Lexus/Toyota)
• Air Mix Door Servo Motor RH Circuit Fault (Mazda)

Code B1267 Overview #

Code B1267 points to a problem in the electrical circuit controlling the right-side air intake servo motor. This servo motor is a small electric actuator responsible for adjusting the air mix or airflow direction in your vehicle’s HVAC (Heating, Ventilation, and Air Conditioning) system. When the circuit is interrupted—by a wiring issue, a failed motor, or a control module glitch—the HVAC system may lose precise air distribution to one side of the cabin. This can result in discomfort, uneven climate control, and sometimes warning lights or error messages on the dashboard. The code is stored when the HVAC control module detects that the servo motor is not operating as commanded, either due to no response or abnormal electrical feedback.

Common Symptoms for Code B1267 #

Problems with the right air intake servo motor circuit often manifest as subtle annoyances or obvious comfort issues. Here’s what you might notice:

• Persistent uneven temperature or airflow from the right-side vents
• Inability to control passenger-side air mix (hot/cold air stuck)
• Clicking, ticking, or whirring noises from the passenger dashboard area (faulty servo attempting to move)
• HVAC system error messages or flashing climate control panel lights
• No response to temperature or mode changes on the passenger side

Probable Causes for Code B1267 #

The root causes for a B1267 code tend to follow a predictable pattern, from most to least common:

1. Failed right-side air intake servo motor (worn gears, burned-out motor, or internal short)
2. Open or short circuit in the wiring harness to the servo motor
3. Faulty or corroded connector at the servo motor or control module
4. Defective HVAC control module (rare, but possible)
5. Blown fuse or relay in the HVAC system circuit

Step-by-Step Diagnosis for Code B1267 #

Diagnosing B1267 requires a methodical approach to pinpoint the exact fault. Here’s a technician-approved workflow:

• 1. Scan for related codes: Use a professional OBD-II scanner to check for other HVAC or body control codes that might indicate a larger issue.
• 2. Visual inspection: Locate the right-side air intake servo motor (usually under the dashboard, passenger side). Check wiring and connectors for damage, corrosion, or disconnection.
• 3. Function test: Command the servo through the vehicle’s climate control system and listen/feel for response. No movement suggests a dead motor or wiring fault.
• 4. Voltage and continuity checks: With a multimeter, verify power, ground, and signal continuity between the HVAC module and the servo motor. Look for open circuits or shorts.
• 5. Direct motor test: If accessible, apply voltage directly to the servo motor to confirm if it operates independently.
• 6. Module testing: If wiring and motor are good, suspect a control module issue and follow OEM-specific diagnostic procedures.

Possible Repairs for Code B1267 #

Repairs should always address the proven root cause to avoid repeat failures:

• Replace the right-side air intake servo motor if tests confirm it is faulty
• Repair or replace damaged wiring or connectors between the servo and the HVAC control module
• Clean or replace corroded connectors at the motor or module
• Replace blown fuses or relays in the HVAC circuit (after confirming the reason for failure)
• Replace or reprogram the HVAC control module only if all other components and wiring are confirmed good

Can You Drive with Code B1267? #

Yes, but with limitations. Code B1267 does not affect the engine, brakes, or safety-critical systems. However, you may experience discomfort due to inability to control temperature or airflow on the right side of the cabin, especially in extreme weather. If you rely on full HVAC function for demisting, passenger comfort, or allergy control, prompt repair is recommended.

Vehicles Most Commonly Affected by Code B1267 #

B1267 appears most often in vehicles equipped with dual-zone or advanced automatic climate control systems. Typical platforms include:

• Ford (Explorer, F-150, Edge, Taurus, Flex, and related models)
• Lexus (RX, ES, GS, LS, and others with dual-zone climate)
• Toyota (Avalon, Camry, Highlander, Sienna)
• Mazda (CX-9, Mazda6, with automatic HVAC)
• Honda/Acura (occasional, dual-zone equipped)

Frequent Mistakes & Best Practices for B1267 #

Misdiagnosis is common with HVAC servo codes, especially when symptoms are intermittent. Here’s how to avoid trouble:

• Don’t replace the servo motor without testing wiring and connectors first. A wiring fault can mimic a failed motor.
• Avoid forcing the blend door or servo by hand. This can strip gears or cause new faults.
• Always clear codes and test system operation after repairs. Some HVAC modules require a calibration or relearn process.
• Document connector pinouts and wire colors before disassembly.

Quick FAQ for Code B1267 #

When this code pops up, these are the questions we hear most:

• Q: Can B1267 cause other HVAC codes or system shutdown?
  A: Yes. If the HVAC module can’t communicate with the servo, it may set additional codes or default to “fail-safe” mode, limiting climate control options.
• Q: Is replacing the servo a DIY job?
  A: On some models, yes—if you’re comfortable working under the dash and have access to basic tools. However, tight spaces and fragile connectors can make this a job better suited to experienced DIYers or professionals.