RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN 7 (2001)
Intake Air Heater Relay: Description and Operation
Fig. 29 Intake Manifold Air Heater Relays Location
The 2 intake manifold air heater relays are located in the engine compartment, attached to the left inner fender below the left battery (Fig. 29).
The Engine Control Module (ECM) operates the 2 heating elements through the 2 intake manifold air heater relays.
Refer to Powertrain Diagnostic Procedures for an electrical operation and complete description of the intake heaters, including pre-heat and post-heat
cycles.
