P04D2
EGR Temperature Sensor C Circuit Intermittent/Erratic
P04D2 is an OBD-II diagnostic trouble code meaning: EGR Temperature Sensor C 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 idling
- Power reduction
- Increased fuel consumption
- Check Engine light comes on
Causes
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- EGR temperature sensor malfunction
- Corroded terminals or connectors
- ECU malfunction (rare)
How to Fix
- Visually inspect the wiring harness and connectors for damage
- Checking the resistance and voltage in the sensor circuit
- Cleaning connector contacts
- Replacing the EGR temperature sensor with a confirmed fault
- Resetting the error with an OBD-II scanner and checking for reappearance
Related codes
Error P04D2 by Vehicle Brand
FAQ
What does the P04D2 code mean?
P04D2 is an OBD-II diagnostic trouble code that indicates: EGR Temperature Sensor C Circuit Intermittent/Erratic
What causes a P04D2 error code?
The most common causes of P04D2 include: Open or short circuit in wiring harness; Poor contact in the sensor connector; EGR temperature sensor malfunction; Corroded terminals or connectors.
How do I fix a P04D2 diagnostic trouble code?
To fix P04D2: Visually inspect the wiring harness and connectors for damage. Checking the resistance and voltage in the sensor circuit. Cleaning connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P04D2?
Limited driving only, diagnose soon
How much does it cost to fix P04D2?
The estimated repair cost for P04D2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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