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2005 RAM 3500
5.9L I6 Cummins•4WD•diesel•ISB•turbo
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Repairs0Labor523Torque138Fluid11DTC1684Battery1Maintenance0Recalls0
P2416moderate severityPowertrain

O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 2 Sensor 3

on 2005 Ram 3500 5.9L I6 Cummins · 4WD

What this code means

The controller detected that oxygen sensor signals appear crossed or swapped between Bank 1 Sensor 2 and Bank 2 Sensor 3. This usually means the sensors are wired to the wrong locations.

Symptoms

  • Check engine light on
  • Poor fuel economy
  • Failed emissions test

Common causes

  • O2 sensor connectors swapped during service
  • Wiring harness crossed or miswired
  • Faulty oxygen sensor
  • Corroded sensor connectors

Diagnostic steps

  1. Verify each O2 sensor is connected to correct location
  2. Inspect wiring harness routing and connectors
  3. Compare sensor readings with scan tool
  4. Repair miswiring or replace faulty sensor
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