B14F9
Low Side Driver 2
B14F9 is an OBD-II diagnostic trouble code meaning: Low Side Driver 2. Common causes: open or short circuit in wiring harness, malfunction of the actuator (solenoid, valve). Estimated repair cost: $33–167.
Symptoms
- Rough idle
- Loss of engine power
- The Check Engine light comes on
- Switching to emergency mode
Causes
- Open or short circuit in wiring harness
- Malfunction of the actuator (solenoid, valve)
- Problems with the control unit
- Oxidation or damage to contacts in connectors
- Chain ground problems
How to Fix
- Check the serviceability of the actuator in circuit 2
- Conduct resistance and continuity diagnostics
- Inspect connectors and contacts for damage
- Check power and ground in the circuit
- If necessary, replace the faulty component or wiring harness.
Related codes
FAQ
What does the B14F9 code mean?
B14F9 is an OBD-II diagnostic trouble code that indicates: Low Side Driver 2
What causes a B14F9 error code?
The most common causes of B14F9 include: Open or short circuit in wiring harness; Malfunction of the actuator (solenoid, valve); Problems with the control unit; Oxidation or damage to contacts in connectors.
How do I fix a B14F9 diagnostic trouble code?
To fix B14F9: Check the serviceability of the actuator in circuit 2. Conduct resistance and continuity diagnostics. Inspect connectors and contacts for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B14F9?
Limited driving only, diagnose soon
How much does it cost to fix B14F9?
The estimated repair cost for B14F9 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat