Diagnostic Test

LOW SPEED RADIATOR FAN CONTROL
NOTE: Diagnose and repair any Cooling Fan circuit or Temperature Sensor circuit DTCs before proceeding with this test.
1. Turn the ignition on.
2. With a scan tool, select Radiator Cooling Fan #1 Control State to actuate the Cooling Fan (Low Speed).
  Does The Cooling Fan Operate?
  
  Yes
  - Go to step 2
  No
  - Go to step 3
HIGH SPEED RADIATOR FAN CONTROL
1. With a scan tool, select Radiator Cooling Fan #2 Control State to actuate the Cooling Fan (High Speed).
  Does The Cooling Fan Operate?
  
  Yes
  - Test complete.
  No
  - Go to step 4
LOW SPEED RAD FAN CONTROL CIRCUIT

Fig 1: Low Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Radiator Cooling Fan Module harness connector.
3. Turn the ignition on.
4. With a scan tool, select Radiator Cooling Fan #1 Control State, Toggle, to actuate the Cooling Fan (Low Speed).
5. Using a 12-volt test light connected to battery voltage, probe the (N201) Low 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
  - Go to step 5
  No
  - Go to step 7
HIGH SPEED RAD FAN CONTROL CIRCUIT

Fig 2: High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Radiator Cooling Fan Module harness connector.
3. Turn the ignition on.
4. With a scan tool, select Radiator Cooling Fan #2 Control State, Toggle, to actuate the Cooling Fan (High Speed).
5. Using a 12-volt test light connected to battery voltage, probe the (N112) Low 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
  - Go to step 5
  No
  - Go to step 10
(A16) FUSED B+ CIRCUIT

Fig 3: Checking Fused B+ Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. 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 6
  No
  - Repair the (A16) Fused B+ circuit. Inspect the related fuse and repair as necessary.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(Z903) GROUND CIRCUIT OPEN OR HIGH RESISTANCE

Fig 4: Checking Ground Circuit
Courtesy of CHRYSLER LLC
1. Using a 12 volt test light connected to 12 volts, check the (Z903) Ground circuit in the Radiator Cooling Fan Module harness connector.
  NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
  
  Is the test light illuminated and bright?
  
  Yes
  - Replace the Radiator Cooling Fan Module.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the (Z903) Ground circuit for an open or high resistance.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(N201) LOW SPEED RAD FAN CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 5: Checking Low Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C11 harness connector.
3. Turn the ignition on.
4. Using a voltmeter, measure the voltage of the (N201) Low Speed Rad Fan Control circuit in the Radiator Cooling Fan Module harness connector.
  Is there voltage present?
  
  Yes
  - Repair the (N201) Low Speed Rad Fan Control circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 8
(N201) LOW SPEED RAD FAN CONTROL CIRCUIT OPEN

Fig 6: Checking Low Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance of the (N201) Low Speed Rad 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 9
  No
  - Repair the (N201) Low Speed Rad Fan Control circuit for an open or high resistance.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(N201) LOW SPEED RAD FAN CONTROL CIRCUIT SHORTED TO GROUND

Fig 7: Checking Low Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (N201) Low Speed Rad Fan Control circuit in the TIPM C11 harness connector.
  Is the resistance below 100 ohms?
  
  Yes
  - Repair the (N201) Low Speed Rad Fan Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 13
(N112) HIGH SPEED RAD FAN CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 8: Checking High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C11 harness connector.
3. Turn the ignition on.
4. 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 (N112) High Speed Rad Fan Control circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 11
(N112) HIGH SPEED RAD FAN CONTROL CIRCUIT OPEN

Fig 9: Checking High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance of the (N112) High Speed Rad 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 12
  No
  - Repair the (N112) High Speed Rad Fan Control circuit for an open or high resistance.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(N112) HIGH SPEED RAD FAN CONTROL CIRCUIT SHORTED TO GROUND

Fig 10: Checking High Speed Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (N112) High Speed Rad Fan Control circuit in the TIPM C11 harness connector.
  Is the resistance below 100 ohms?
  
  Yes
  - Repair the (N112) High Speed Rad Fan Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 13
TOTALLY INTEGRATED POWER MODULE (TIPM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Radiator Cooling Fan Module and the Totally Integrated Power Module (TIPM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Refer to any Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace and program the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST - VER 1. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .