P28C2
Ion Sense Module Supply Voltage High
P28C2 is an OBD-II diagnostic trouble code meaning: Ion Sense Module Supply Voltage High. Common causes: problems with wiring to the ion probe module, ion probe module malfunction. Estimated repair cost: $56–167.
Symptoms
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
- Possible misfires
Causes
- Problems with wiring to the ion probe module
- Ion probe module malfunction
- Problems with the engine control unit
- Short circuit in power supply
- Faulty relay or fuse
How to Fix
- Check the integrity of the wiring to the ion probe module
- Check the module supply voltage
- Inspect connectors for corrosion or damage
- Check the operation of the engine control unit
- Replace the ion probe module if necessary
Related codes
Error P28C2 by Vehicle Brand
FAQ
What does the P28C2 code mean?
P28C2 is an OBD-II diagnostic trouble code that indicates: Ion Sense Module Supply Voltage High
What causes a P28C2 error code?
The most common causes of P28C2 include: Problems with wiring to the ion probe module; Ion probe module malfunction; Problems with the engine control unit; Short circuit in power supply.
How do I fix a P28C2 diagnostic trouble code?
To fix P28C2: Check the integrity of the wiring to the ion probe module. Check the module supply voltage. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28C2?
Yes, but get it checked soon
How much does it cost to fix P28C2?
The estimated repair cost for P28C2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat