P0545
Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 1
P0545 is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 1. Common causes: exhaust gas temperature sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable operation at idle
Causes
- Exhaust gas temperature sensor malfunction
- Open or short circuit in wiring harness
- Poor connection or corroded contacts
- Engine control unit (ECU) malfunction
How to Fix
- Check the integrity of the wiring harness and sensor connections
- Check the resistance of the EGT sensor (compare with factory values)
- Replace EGT sensor if necessary
- Check and clean the sensor connector contacts
- Reset the error and check if it returns
Related codes
Error P0545 by Vehicle Brand
FAQ
What does the P0545 code mean?
P0545 is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 1
What causes a P0545 error code?
The most common causes of P0545 include: Exhaust gas temperature sensor malfunction; Open or short circuit in wiring harness; Poor connection or corroded contacts; Engine control unit (ECU) malfunction.
How do I fix a P0545 diagnostic trouble code?
To fix P0545: Check the integrity of the wiring harness and sensor connections. Check the resistance of the EGT sensor (compare with factory values). Replace EGT sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0545?
Limited driving only, diagnose soon
How much does it cost to fix P0545?
The estimated repair cost for P0545 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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