Diagnostic Test

RADIATOR FAN HIGH RELAY OPERATION
1. Turn the ignition on.
2. With a scan tool, actuate the Radiator Cooling Fan Relay #2 Control State.
  Is the Cooling Fan Relay operating?
  
  Yes
  - Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  - Perform the PCM Verification Test. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 2
FUSED B+ CIRCUITS

Fig 1: Using 12-Volt Test Light Connected To Ground To Probe Fused B+ Circuits In Relay Connection
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Remove the Radiator High Fan Relay.
3. Using a 12-volt test light connected to ground, probe the Fused B+ circuits in the Relay connection.
  Is the test light illuminated and bright?
  
  Yes
  - Go to step 4
  No
  - Go to step 3
RADIATOR FAN HI/LO CONTROL RELAY SHORTED INTERNALLY
1. With the test light still at the Fused B+ circuit (Radiator High Fan Relay), remove the Radiator Fan HI/LO Control Relay.
  With the relay removed, is the test light illuminated and bright?
  
  Yes
  - Replace the Radiator Fan HI/LO Control Relay.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the open circuit or short to ground in the Fused B+ circuits. Inspect the related fuse and repair as necessary.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
RADIATOR FAN HIGH RELAY CONTROL CIRCUIT

Fig 2: Using 12-Volt Test Light Connected To 12 Volts To Check Radiator Fan High Relay Control Circuit In TIPM
Courtesy of CHRYSLER LLC
1. Turn the ignition on.
2. With a scan tool, actuate the Radiator Cooling Fan Relay #2 Control State to toggle.
3. Using a 12-volt test light connected to 12 volts, check the Radiator Fan High Relay Control circuit in the PDM.
  Does the test light toggle appropriately during the actuation?
  
  Yes
  - Replace the Radiator Fan High Relay.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 5
(N112) RADIATOR FAN HIGH RELAY CONTROL CIRCUIT OPEN

Fig 3: Checking Radiator Fan High Relay Control Circuit For Open
Courtesy of CHRYSLER LLC
1. Remove the TIPM from the PDM.
2. Measure the resistance of the (N112) Radiator Fan High Relay Control circuit from the Relay connection to the TIPM PDM - 49 way connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go to step 6
  No
  - Replace the PDM in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(N112) RADIATOR FAN HIGH RELAY CONTROL CIRCUIT SHORTED TO GROUND

Fig 4: Checking Radiator Fan High Relay Control Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (N112) Radiator Fan High Control circuit at the Relay connection.
  Is the resistance below 100 Ohms?
  
  Yes
  - Go to step 7
  No
  - Replace the Front Control Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
RADIATOR FAN HI/LO CONTROL RELAY SHORTED INTERNALLY
1. With the probe still at the (N112) Radiator Fan High Control circuit, remove the Radiator Fan HI/LO Control Relay.
  Is the resistance still below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (N112) Radiator Fan High Control circuit.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Radiator Fan HI/LO Control Relay.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .