P030D
Ignition B Control Signal Circuit/Open
P030D is an OBD-II diagnostic trouble code meaning: Ignition B Control Signal Circuit/Open. Common causes: broken ignition coil wiring harness, poor contact in coil connector. Estimated repair cost: $56–167.
Symptoms
- Misfires
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Is On
Causes
- Broken ignition coil wiring harness
- Poor contact in coil connector
- Ignition coil malfunction
- Problems with the engine control unit (ECU)
How to Fix
- Check the integrity of the ignition coil wiring harness
- Inspect the coil connectors for oxidation or damage.
- Check the resistance of the ignition coil
- If necessary, replace the ignition coil
- Check the control signal from the ECU
Related codes
Error P030D by Vehicle Brand
FAQ
What does the P030D code mean?
P030D is an OBD-II diagnostic trouble code that indicates: Ignition B Control Signal Circuit/Open
What causes a P030D error code?
The most common causes of P030D include: Broken ignition coil wiring harness; Poor contact in coil connector; Ignition coil malfunction; Problems with the engine control unit (ECU).
How do I fix a P030D diagnostic trouble code?
To fix P030D: Check the integrity of the ignition coil wiring harness. Inspect the coil connectors for oxidation or damage.. Check the resistance of the ignition coil. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P030D?
Limited driving only, diagnose soon
How much does it cost to fix P030D?
The estimated repair cost for P030D is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat