P102B
Exhaust Temperature Sensor
P102B is an OBD-II diagnostic trouble code meaning: Exhaust Temperature Sensor. Common causes: exhaust gas temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Rough engine idling
- Possible transition to emergency mode
Causes
- Exhaust gas temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Mechanical damage to the sensor
- Problems with the engine control unit
How to Fix
- Check the integrity of the sensor and its connection
- Check the resistance and voltage in the sensor circuit
- Inspect the wiring harness for damage
- If necessary, replace the exhaust gas temperature sensor
- Reset the error code and check if it appears again
Related codes
FAQ
What does the P102B code mean?
P102B is an OBD-II diagnostic trouble code that indicates: Exhaust Temperature Sensor
What causes a P102B error code?
The most common causes of P102B include: Exhaust gas temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Mechanical damage to the sensor.
How do I fix a P102B diagnostic trouble code?
To fix P102B: Check the integrity of the sensor and its connection. Check the resistance and voltage in the sensor circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P102B?
Yes, but get it checked soon
How much does it cost to fix P102B?
The estimated repair cost for P102B is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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