Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

RADIATOR COOLING FAN MODULE OPERATION
1. Ignition on, engine not running.
2. With a scan tool, select Radiator Cooling Fan Relay #1 Control State to actuate the Cooling Fan (Low/High).
  Is the one Cooling Fan operating?
  
  Yes
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
  No
  - Go To 2.
(N201) LOW/HIGH RAD FAN CONTROL CIRCUIT
1. Turn the ignition on, engine not running.
2. With a scan tool, select Radiator Cooling Fan Relay 1 Control State, Toggle, to actuate the Cooling Fan (Low/High).
3. Using a 12-volt test light connected to battery voltage, probe the (N201) Low/High Rad Fan Control circuit in the Low/High Rad Relay terminal.
  Does the test light illuminate brightly and flash on and off during the actuation?
  
  Yes
  - Replace the Low/High Rad Fan Relay.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3.
(N201) LOW/HIGH RAD FAN CONTROL CIRCUIT OPEN
1. Measure the resistance of the (N201) Low/High Rad Fan Control circuit from the PCM C1 harness connector to the (N201) Low/High Rad Fan Control circuit in the Low/High Rad Relay terminal.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4.
  No
  - Repair the open in the (N201) Low/High Rad Fan Control circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
(N201) LOW/HIGH RAD FAN CONTROL CIRCUIT SHORTED TO GROUND

Fig 1: Checking Low & High Rad Fan Control Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (N201) Low/High Rad Fan Control circuit in the PCM C1 harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (N201) Low/High Rad Fan Control circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .