OBD Guide

P28C0

Ion Sense Module Supply Voltage Circuit

P28C0 is an OBD-II diagnostic trouble code meaning: Ion Sense Module Supply Voltage Circuit. Common causes: open or short circuit in the module power supply circuit, malfunction of the ion control module. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Unstable engine operation
  • Misfires
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in the module power supply circuit
  • Malfunction of the ion control module
  • Poor contact in connectors
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the module power supply circuit
  2. Inspect connectors and connections for corrosion or damage
  3. Check the module supply voltage
  4. Test the ion control module
  5. If necessary, replace the module or repair the wiring

Related codes

Error P28C0 by Vehicle Brand

FAQ

What does the P28C0 code mean?

P28C0 is an OBD-II diagnostic trouble code that indicates: Ion Sense Module Supply Voltage Circuit

What causes a P28C0 error code?

The most common causes of P28C0 include: Open or short circuit in the module power supply circuit; Malfunction of the ion control module; Poor contact in connectors; Wiring harness damage.

How do I fix a P28C0 diagnostic trouble code?

To fix P28C0: Check the integrity of the module power supply circuit. Inspect connectors and connections for corrosion or damage. Check the module supply voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P28C0?

Yes, but get it checked soon

How much does it cost to fix P28C0?

The estimated repair cost for P28C0 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat