Check 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's pins.
What is the Cost to Diagnose the Code P0038 2007 Nissan Maxima?
Labor: 1.0
The cost of diagnosing the P0038 2007 Nissan Maxima code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the Code P0038 2007 Nissan Maxima Detected?
The P0038 is set when the ECM detects an excessively high voltage through the heated oxygen sensor heater circuit
What are Code P0038 2007 Nissan Maxima Possible Symptoms?
Engine Light ON (or Service Engine Soon Warning Light)
Code P0038 2007 Nissan Maxima Description
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications. P0038 2007 Nissan Maxima Code - HO2S12 Heater Control Circuit High
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