RAM 3500 HD Truck 4WD L6-6.7L DSL Turbo VIN A (2007)
Oxygen Sensor Relay: Diagrams
2007-2009 Ram truck, 6.7L, use an O2 module for oxygen sensor heater control.
The oxygen sensor module (1) is located under the vehicle. It is bolted to the outer side of right frame rail (4).
