P113C Possible Causes
- Faulty smart oxygen module
- Smart oxygen module harness is open or shorted
- Poor electrical connection in the smart oxygen module circuit
How to Fix Code P113C?
Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check engine light on (or service engine soon warning light)
P113C Meaning
The oxygen sensor is controlled by the Smart Oxygen module (smart O2 module). This module is a smart device that receives information, such as engine speed, etc., from the main engine’s Electronic Control Module (ECM). It provides the oxygen concentration signal to the ECM. It also performs its own diagnostics and reports faults to the main engine ECM. The ECM then decodes the error message and converts it into a fault code.