P030B
Ignition A Control Signal Circuit Low
P030B is an OBD-II diagnostic trouble code meaning: Ignition A Control Signal Circuit Low. Common causes: open or short circuit in wiring harness, ignition coil malfunction. Estimated repair cost: $56–167.
Symptoms
- Misfires
- Unstable idle
- Reduced engine power
- Increased fuel consumption
Causes
- Open or short circuit in wiring harness
- Ignition coil malfunction
- Problems with the engine control unit (ECU)
- Poor contact in connectors
How to Fix
- Check the wiring harness for breaks or damage
- Check the ignition coil for functionality
- Check connectors and contacts for oxidation or damage
- If necessary, replace faulty components
Related codes
Error P030B by Vehicle Brand
FAQ
What does the P030B code mean?
P030B is an OBD-II diagnostic trouble code that indicates: Ignition A Control Signal Circuit Low
What causes a P030B error code?
The most common causes of P030B include: Open or short circuit in wiring harness; Ignition coil malfunction; Problems with the engine control unit (ECU); Poor contact in connectors.
How do I fix a P030B diagnostic trouble code?
To fix P030B: Check the wiring harness for breaks or damage. Check the ignition coil for functionality. Check connectors and contacts for oxidation or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P030B?
Limited driving only, diagnose soon
How much does it cost to fix P030B?
The estimated repair cost for P030B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat