Engine-Codes - BMW - P112D BMW

P112D BMW Code - Upstream Oxygen Sensor Open Circuit Monitoring Virtual Ground Failure or Pumping Current Failure Bank 2

- Code Popularity: 16,048 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P112D BMW?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Upstream Oxygen Sensor Bank 2
  • Upstream Oxygen Sensor Bank 2 harness is open or shorted
  • Upstream Oxygen Sensor Bank 2 circuit poor electrical connection
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How to Fix the DTC P112D BMW?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P112D BMW code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P112D BMW Code Mean?

The oxygen sensor circuit monitoring detects the following malfunctions by evaluating the error information received from oxygen sensor monitoring functions. This function determines if an open circuit in any of the four electric lines (Reference Voltage, Virtual Ground, Pumping Current, and Trim Current) is present in the WRAF Sensor.
This function shall be triggered only if one of the following diagnosis is active (to set the readiness bit), which are 'Upstream Oxygen Sensor - Signal Monitoring During Fuel Cut-off' and 'Upstream Oxygen Sensor - Heater Monitoring'. The function shall go to the state = “active” only if one of the above diagnosis detected a fault.
An open circuit in line Virtual Ground or in the line Pumping current can be detected if the sensor signal stocks near lambda 1. The sensor non-activity can be detected by the Oxygen Sensor Signal Monitoring During Fuel Cut-off (signal voltage below e.g. 2,1 V *) in fuel cut off).

P112D BMW Code - Upstream Oxygen Sensor Open Circuit Monitoring Virtual Ground Failure or Pumping Current Failure Bank 2

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