P102B Possible Causes
- Faulty exhaust temperature sensor
- Exhaust temperature sensor harness is open or shorted
- Poor electrical connection in the exhaust temperature sensor circuit
How is P102B Code Repaired?
Begin by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P102B Meaning
The engine control module (ECM) monitors the exhaust temperature sensor. The ECM sets the OBDII code when the exhaust temperature sensor does not meet factory specifications.