P0135 on Dodge Hornet: Fix & DLC Location
Factory diagnostic troubleshooting wire for fault code P0135 (O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)) specifically on the Dodge Hornet (2023–2026, 2.0L Turbo (265HP) / R/T PHEV (288HP / eAWD)).
1. Symptoms of P0135 on Dodge Hornet
When the Engine Control Module (ECM/PCM) on your Dodge Hornet (2.0L Turbo (265HP) / R/T PHEV (288HP / eAWD)) logs fault code P0135, drivers commonly observe:
2. Most Likely Causes on Dodge Hornet
Historical warranty claims and technical repair bulletins for Dodge Hornet point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Dodge Hornet
Locate the under-hood fuse box and test the O2 sensor heater fuse with a multimeter or test light. on the Dodge Hornet equipped with 2.0L Turbo (265HP) / R/T PHEV (288HP / eAWD).
Unplug the Bank 1 Sensor 1 connector and test resistance between the two heater pins (typically 3 to 15 ohms). on the Dodge Hornet equipped with 2.0L Turbo (265HP) / R/T PHEV (288HP / eAWD).
Use an O2 sensor socket wrench to remove the old sensor from the exhaust manifold and install an OEM-spec replacement with anti-seize on the threads. on the Dodge Hornet equipped with 2.0L Turbo (265HP) / R/T PHEV (288HP / eAWD).
Other Common Fault Codes on Dodge Hornet
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Dodge Hornet:
4. Dodge Hornet P0135 FAQs
What causes code P0135 to trigger on a Dodge Hornet?
On the Dodge Hornet (2.0L Turbo (265HP) / R/T PHEV (288HP / eAWD)), P0135 is most frequently caused by Burnt-out internal heating element in upstream oxygen sensor or Blown O2 sensor heater fuse.
Where is the OBD-II port located on my Dodge Hornet?
On the Dodge Hornet, the 16-pin DLC diagnostic connector is located Under driver steering column lower trim. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Dodge Hornet with code P0135?
Yes, vehicle is safe to drive, but will stay in open-loop mode longer upon startup. Given that P0135 carries a Low to Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.