P2CA4
Particulate Filter Pressure Sensor Signals Swapped A/B
P2CA4 is an OBD-II diagnostic trouble code meaning: Particulate Filter Pressure Sensor Signals Swapped A/B. Common causes: pressure sensor connectors mixed up, damage to the wiring to the sensors. Estimated repair cost: $33–89.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Problems with diesel particulate filter regeneration
- Errors in the exhaust gas purification system
Causes
- Pressure sensor connectors mixed up
- Damage to the wiring to the sensors
- Malfunction of one of the pressure sensors
- Problems with the engine control unit
- Mechanical damage to the particulate filter
How to Fix
- Check that the pressure sensors are connected correctly
- Inspect the condition of the wiring and connectors
- Check sensor readings using diagnostic equipment
- If necessary, replace faulty sensors
- Reset the error and check the system operation
Related codes
Error P2CA4 by Vehicle Brand
FAQ
What does the P2CA4 code mean?
P2CA4 is an OBD-II diagnostic trouble code that indicates: Particulate Filter Pressure Sensor Signals Swapped A/B
What causes a P2CA4 error code?
The most common causes of P2CA4 include: Pressure sensor connectors mixed up; Damage to the wiring to the sensors; Malfunction of one of the pressure sensors; Problems with the engine control unit.
How do I fix a P2CA4 diagnostic trouble code?
To fix P2CA4: Check that the pressure sensors are connected correctly. Inspect the condition of the wiring and connectors. Check sensor readings using diagnostic equipment. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2CA4?
Yes, but get it checked soon
How much does it cost to fix P2CA4?
The estimated repair cost for P2CA4 is $33–89. Actual cost depends on your vehicle, location, and labor rates.
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