Diagnostic Test

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.

RADIATOR COOLING FAN MODULE OPERATION
1. Ignition on, engine not running.
2. With a scan tool, actuate both the Radiator Cooling Fan Relays #1 and #2.
  Are both cooling fan operating at medium speed?
  
  Yes
  - Refer to the CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. 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. Ignition on.
2. Disconnect the Med/High Rad Fan Relay from the Fuse/Relay Block.
3. Disconnect the Series/Parallel Rad Fan Relay from the Fuse/Relay Block.
4. Using a 12-volt test light connected to ground, probe the (A16) Fused B+ circuit at both the Med/High Rad Fan Relay and the Series/Parallel Rad Fan Relay connectors.
  Does the test light illuminate brightly at each terminal?
  
  Yes
  - Go to step 3
  No
  - Repair the (A16) Fused B+ circuit. Inspect the related fuse and repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
MED/HIGH RAD FAN RELAY

Fig 2: Checking Radiator Fan Relay Control Circuit
Courtesy of CHRYSLER LLC
1. Install the Series/Parallel Rad Fan Relay.
2. Turn the ignition on, engine not running.
3. With a scan tool, select Radiator Cooling Fan Relay #2 Control State, Toggle, to actuate the Cooling Fan (Med/High Rad Fan Relay).
4. Using a 12-volt test light connected to battery voltage, probe the (N112) Rad Fan Relay Control circuit at the Med/High Rad Fan Relay.
  Does the test light illuminate brightly and flash on and off?
  
  Yes
  - Replace the Med/High Rad Fan Relay.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 4
SERIES/PARALLEL RAD FAN RELAY)

Fig 3: Checking Radiator Fan Relay Control Circuit
Courtesy of CHRYSLER LLC
1. Remove the Series/Parallel Rad Fan Relay.
2. Install the Med/High Rad Fan Relay.
3. Turn the ignition on, engine not running.
4. With a scan tool, select Radiator Cooling Fan Relay #2 Control State, Toggle, to actuate the Cooling Fan (Series/Parallel Rad Fan Relay).
5. Using a 12-volt test light connected to battery voltage, probe the (N112) Rad Fan Relay Control circuit at the Series/Parallel Rad Fan Relay.
  Does the test light illuminate brightly and flash on and off?
  
  Yes
  - Replace the Series/Parallel Rad Fan Relay.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 5
(N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE

Fig 4: Checking Radiator Fan Relay Control Circuit
Courtesy of CHRYSLER LLC
1. Disconnect the TIPM C11 harness connector.
2. Using a voltmeter, measure the voltage of the (N112) Rad Fan Relay Control circuit in the Med/High Rad Fan Relay harness connector.
  Is there voltage present?
  
  Yes
  - Repair the short to voltage in the (N112) Rad Fan Relay Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 6
(N112) RAD FAN RELAY CONTROL CIRCUIT OPEN

Fig 5: Checking Radiator Fan Control Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (N112) Rad Fan Relay Control circuit from the Med/High Rad Fan Relay harness connector to the TIPM C11 harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go to step 7
  No
  - Repair the open in the (N112) Rad Fan Relay Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND

Fig 6: Checking Radiator Fan Relay Control Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (N112) Rad Fan Relay Control circuit in the TIPM C11 harness connector.
  Is the resistance below 100 ohms?
  
  Yes
  - Repair the short to ground in the (N112) Rad Fan Relay Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Totally Integrated Power Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .