P2218 - NOx Sensor Heater Control Circuit/Open Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Nitrogen Oxide (NOx) Sensor
  • Nitrogen Oxide (NOx) Sensor harness is open or shorted
  • Nitrogen Oxide (NOx) Sensor circuit poor electrical connection

Possible symptoms

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

P2218 Description

The Nitrogen Oxide (NOx) sensor measures the amount of nitric oxide and nitrogen oxide in the exhaust system. When the NOx sensor indicates that the storage capacity has been reached, the regeneration phase is initiated by the fueling management system. The Powertrain Control Module (PCM) monitors the NOx sensor and sets the code when the NOx sensor circuit voltage reading is not within the normal operating threshold for a specific engine bank.
OBDII Code P2218 - NOx Sensor Heater Control Circuit/Open Bank 2 - AutoCodes.com

P2218 Information for specific makes

  • P2218 CHEVROLET NOx Sensor Heater Control Circuit/Open Bank 2
  • P2218 DODGE NOx Sensor Heater Control Circuit/Open Bank 2
  • P2218 FORD NOx Sensor Heater Control Circuit/Open Bank 2
  • P2218 GMC NOx Sensor Heater Control Circuit/Open Bank 2

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P2218 Comments

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