The B1267 OBD2 fault code relates to the HVAC Servo Motor Airintake Right servo motor circuit. This motor controls the position of blend doors that direct air flow inside the cabin. When the circuit circuit failure, the climate control module cannot properly regulate air distribution.

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Symptoms

• Air flow stuck in one mode (e.g., always defrost, always floor)
• No air flow from selected vents
• Clicking or repetitive noise from behind the dashboard
• Temperature changes not reflected in air output

Common Causes

• Failed servo motor — worn gears, stripped linkage, or burnt motor windings
• a general circuit failure is detected — can result from wiring faults, connector issues, or component failure
• Wiring issues — damaged harness between servo and climate module
• Connector problems — corrosion or loose pins
• Binding blend door — mechanical obstruction preventing movement

Step-by-Step Diagnosis

1. Scan with OBD2 tool — Confirm B1267 and check for other HVAC codes.
2. Listen for actuator sounds — Cycle through HVAC modes with ignition on.
3. Access the servo — Remove glove box or trim panel to reach the Servo Motor Airintake Right servo.
4. Test motor operation — Apply direct voltage to test motor movement.
5. Inspect wiring — Check for damage, corrosion, or pin issues.

Repair & Solutions

• Replace the servo motor if it fails to move or makes grinding noises.
• Repair wiring as needed.
• Clear obstructions from blend door linkage.
• Clear the DTC and recalibrate the HVAC system.

Related Codes

• B1264 — Servo Motor Foot Circuit Failure
• B1265 — Servo Motor Coolair Bypass Circuit Failure
• B1266 — Servo Motor Airintake Left Circuit Failure

External References

- OBD2Pros — Complete DTC Reference

About This Guide

This diagnostic article is an original guide created by AIscanAuto for educational and troubleshooting purposes. The technical information about OBD2 DTC codes is based on publicly available automotive diagnostic standards and industry best practices. External links provided in the "External References" section are for additional reading and context only — they do not imply endorsement or ownership of third-party content. All repair procedures should be performed by qualified technicians.