B3674
Movable Roof Control Valve 1 Circuit
B3674 is an OBD-II diagnostic trouble code meaning: Movable Roof Control Valve 1 Circuit. Common causes: open or short circuit in the circuit, solenoid valve malfunction. Estimated repair cost: $56–167.
Symptoms
- Airbag malfunction indicator light is on
- Lack of system response during diagnostics
- Errors in the passive safety system
Causes
- Open or short circuit in the circuit
- Solenoid valve malfunction
- Wiring harness damage
- Problems with the control unit
How to Fix
- Check the integrity of the wiring harness
- Check resistance and voltage in the circuit
- Replace faulty valve if necessary
- Flash or replace the control unit (if required)
Related codes
Error B3674 by Vehicle Brand
FAQ
What does the B3674 code mean?
B3674 is an OBD-II diagnostic trouble code that indicates: Movable Roof Control Valve 1 Circuit
What causes a B3674 error code?
The most common causes of B3674 include: Open or short circuit in the circuit; Solenoid valve malfunction; Wiring harness damage; Problems with the control unit.
How do I fix a B3674 diagnostic trouble code?
To fix B3674: Check the integrity of the wiring harness. Check resistance and voltage in the circuit. Replace faulty valve if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3674?
Do not drive — repair immediately
How much does it cost to fix B3674?
The estimated repair cost for B3674 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat