OBD II Fault Code

  • OBD II P2697

OBD-II Code Decreased engine performance is defined as a Exhaust Aftertreatment Fuel Injector "A" Circuit/Open

Diesel Exhaust Fluid (DEF) is used to assist in converting leftover exhaust particles to harmless gases. In order to burn off those particles, the temperature of the exhaust system needs to increase. the injection of DEF Fluid into the exhaust stream brings Diesel Particulate Filter (DPF) up to temperature. The system is then able to convert harmful NOx to Nitrogen, Carbon Dioxide, and water. The DEF injector injects DEF into the DPF. If the Injector fails to operate as commanded, code P2697 will be stored.

Decreased engine performance Symptoms

  • Decreased engine performance
  • DPF regeneration may not occur

Common Problems That Trigger the P2697 Code

  • DEF injector failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue
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