Diagnostic Test

RADIATOR COOLING FAN MODULE OPERATION
NOTE: The DTC must not be active for the actuator test to operate properly, clear all DTC before continuing.
1. Ignition on, engine not running.
2. With a scan tool, select Radiator Cooling Fan #2 Control State to actuate the Cooling Fan (High Speed).
  Is the Cooling Fan operating?
  
  Yes
  - Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
  No
  - Go to step 2
(A16) FUSED B+ CIRCUIT

Fig 1: Checking Fused B+ Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Radiator Cooling Fan Module harness connector.
3. Using a 12-volt test light connected to ground, probe the (A16) Fused B+ circuit in the Radiator Cooling Fan Module harness connector.
  Does the test light illuminate brightly?
  
  Yes
  - Go to step 3
  No
  - Repair the (A16) Fused B+ circuit. Inspect the related fuse and repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
HIGH SPEED RAD FAN CONTROL CIRCUIT
1. Turn the ignition on, engine not running.
2. With a scan tool, select Radiator Cooling Fan #2 Control State, Toggle, to actuate the Cooling Fan (High Speed).
3. Using a 12-volt test light connected to battery voltage, probe the (N112) High Speed Rad Fan Control circuit in the Radiator Cooling Fan Module harness connector.
  Does the test light illuminate brightly and flash on and off?
  
  Yes
  - Replace the Radiator Cooling Fan Module.
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
  No
  - Go to step 4
(N112) HIGH SPEED RAD FAN CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE

Fig 2: Checking High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Disconnect the TIPM C11 harness connector.
2. Using a voltmeter, measure the voltage of the (N112) High Speed Rad Fan Control circuit in the Radiator Cooling Fan Module harness connector.
  Is there voltage present?
  
  Yes
  - Repair the short to voltage in the (N112) High Speed Rad Fan Control circuit
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
  No
  - Go to step 5
(N112) HIGH SPEED RAD FAN CONTROL CIRCUIT OPEN

Fig 3: Checking High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (N112) High Speed Fan Control circuit from the Radiator Cooling Fan Module harness connector to the TIPM C11 harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go to step 6
  No
  - Repair the open in the (N112) High Speed Fan Control circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
(N112) HIGH SPEED RAD FAN CONTROL CIRCUIT SHORTED TO GROUND

Fig 4: Checking High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (N112) High Speed Fan Control circuit in the TIPM C11 harness connector.
  Is the resistance below 100 ohms?
  
  Yes
  - Repair the short to ground in the (N112) High Speed Fan Control circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
  No
  - Replace the Totally Integrated Power Module in accordance with the Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure