P1477
Particulate Matter Sensor Temperature Circuit Low Voltage
P1477 is an OBD-II diagnostic trouble code meaning: Particulate Matter Sensor Temperature Circuit Low Voltage. Common causes: open or short circuit in the sensor circuit, particulate filter temperature sensor malfunction. Estimated repair cost: $33–89.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Problems with diesel particulate filter regeneration
- Unstable engine operation
Causes
- Open or short circuit in the sensor circuit
- Particulate filter temperature sensor malfunction
- Connector problems or contact corrosion
- ECU malfunction
- Wiring harness damage
How to Fix
- Check the continuity of the diesel particulate filter temperature sensor circuit
- Check connectors and contacts for corrosion or damage
- Replace the diesel particulate filter temperature sensor if necessary
- Check and replace wiring harness if necessary
- Check the operation of the computer
Related codes
Error P1477 by Vehicle Brand
FAQ
What does the P1477 code mean?
P1477 is an OBD-II diagnostic trouble code that indicates: Particulate Matter Sensor Temperature Circuit Low Voltage
What causes a P1477 error code?
The most common causes of P1477 include: Open or short circuit in the sensor circuit; Particulate filter temperature sensor malfunction; Connector problems or contact corrosion; ECU malfunction.
How do I fix a P1477 diagnostic trouble code?
To fix P1477: Check the continuity of the diesel particulate filter temperature sensor circuit. Check connectors and contacts for corrosion or damage. Replace the diesel particulate filter temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1477?
Yes, but get it checked soon
How much does it cost to fix P1477?
The estimated repair cost for P1477 is $33–89. Actual cost depends on your vehicle, location, and labor rates.
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