P28C1
Ion Sense Module Supply Voltage Low
P28C1 is an OBD-II diagnostic trouble code meaning: Ion Sense Module Supply Voltage Low. Common causes: problems with ion control module wiring or connectors, malfunction of the ion control module itself. Estimated repair cost: $56–167.
Symptoms
- Loss of engine power
- Increased fuel consumption
- Unstable engine idling
- Check Engine Light Illuminates
- Possible misfires
Causes
- Problems with Ion Control Module Wiring or Connectors
- Malfunction of the ion control module itself
- Problems with the engine control unit (ECU)
- Short circuit in the module power supply circuit
- Poor ground contact
How to Fix
- Check the integrity of the wiring and connectors of the ion control module
- Check the module supply voltage (must meet manufacturer specifications)
- Check the condition of the module mass
- If necessary, replace the ion control module
- Check and, if necessary, replace the engine control unit
Related codes
Error P28C1 by Vehicle Brand
FAQ
What does the P28C1 code mean?
P28C1 is an OBD-II diagnostic trouble code that indicates: Ion Sense Module Supply Voltage Low
What causes a P28C1 error code?
The most common causes of P28C1 include: Problems with Ion Control Module Wiring or Connectors; Malfunction of the ion control module itself; Problems with the engine control unit (ECU); Short circuit in the module power supply circuit.
How do I fix a P28C1 diagnostic trouble code?
To fix P28C1: Check the integrity of the wiring and connectors of the ion control module. Check the module supply voltage (must meet manufacturer specifications). Check the condition of the module mass. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28C1?
Limited driving only, diagnose soon
How much does it cost to fix P28C1?
The estimated repair cost for P28C1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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