Gas Engines

Fig 1: Power Distribution Center (PDC)

Courtesy of CHRYSLER LLC

Radiator fan operation is controlled by the Total Integrated Power Module (TIPM) with inputs from the Powertrain Control Module (PDC). Inputs for coolant temperature and vehicle speed are sent to the Powertrain Control Module (PCM) (1). This information is then sent via the communication bus to the TIPM which turns on the radiator fans.

Refer to Radiator Fan Operation Chart  for fan operation specifications. For fan circuit wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .

If the cooling fan is inoperative or a Diagnostic Trouble Code (DTC) related to fan control has been set. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing for diagnostic procedures.