P1083 LEXUS Possible Causes
- Faulty exhaust gas temperature sensor
- Exhaust gas temperature sensor harness is open or shorted
- Poor electrical connection in the exhaust gas temperature sensor circuit
- Hydro-carbon absorber and catalyst (HCAC) valve stuck or actuator problem
How to Fix P1083 LEXUS Code?
Start 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
Illuminated engine light (or service engine soon warning light)
P1083 LEXUS Meaning
The engine control module (ECM) monitors the exhaust gas temperature sensor. The ECM sets the diagnostic trouble code (DTC) when the exhaust gas temperature sensor does not meet factory specifications. HCAC (Hydro-Carbon Absorber and Catalyst System) fault detected.