OBD Guide
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C1214

Difference Between The Ignition Voltage And System Voltage

C1214 is an OBD-II diagnostic trouble code meaning: Difference Between The Ignition Voltage And System Voltage. Common causes: generator malfunction, low or faulty battery. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Misfires
  • Unstable engine idling
  • Reduced engine power
  • Difficulty starting the engine

Causes

  • Generator malfunction
  • Low or faulty battery
  • Damage to the ignition system wiring harness
  • Battery terminal corrosion
  • Engine ECU malfunction

How to Fix

  1. Check the voltage on the battery with the engine running (should be 13.5-14.5V)
  2. Inspect the ignition system wiring harness for damage.
  3. Check the condition of the battery terminals and cleanliness of the contacts
  4. Test the generator for correct operation
  5. If necessary, replace the battery or repair the wiring

Related codes

P0562P0563P0620

FAQ

What does the C1214 code mean?

C1214 is an OBD-II diagnostic trouble code that indicates: Difference Between The Ignition Voltage And System Voltage

What causes a C1214 error code?

The most common causes of C1214 include: Generator malfunction; Low or faulty battery; Damage to the ignition system wiring harness; Battery terminal corrosion.

How do I fix a C1214 diagnostic trouble code?

To fix C1214: Check the voltage on the battery with the engine running (should be 13.5-14.5V). Inspect the ignition system wiring harness for damage.. Check the condition of the battery terminals and cleanliness of the contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1214?

Limited driving only, diagnose soon

How much does it cost to fix C1214?

The estimated repair cost for C1214 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat