P0474
Exhaust Pressure Sensor A Circuit Intermittent/Erratic
P0474 is an OBD-II diagnostic trouble code meaning: Exhaust Pressure Sensor A Circuit Intermittent/Erratic. Common causes: open or short circuit in wiring harness, poor contact in the sensor connector. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- Malfunction of the exhaust gas pressure sensor
- Problems with the ECU
How to Fix
- Check wiring harness for damage
- Check the contacts in the sensor connector
- Check sensor resistance and voltage
- Replace sensor if necessary
- Check the operation of the computer
Related codes
Error P0474 by Vehicle Brand
FAQ
What does the P0474 code mean?
P0474 is an OBD-II diagnostic trouble code that indicates: Exhaust Pressure Sensor A Circuit Intermittent/Erratic
What causes a P0474 error code?
The most common causes of P0474 include: Open or short circuit in wiring harness; Poor contact in the sensor connector; Malfunction of the exhaust gas pressure sensor; Problems with the ECU.
How do I fix a P0474 diagnostic trouble code?
To fix P0474: Check wiring harness for damage. Check the contacts in the sensor connector. Check sensor resistance and voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0474?
Limited driving only, diagnose soon
How much does it cost to fix P0474?
The estimated repair cost for P0474 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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