LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 500 (2.4L - DTCS P0304 To P0615) >> Diagnosis And Testing >> P0481-Cooling Fan 2 Control Circuit >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 

      No 

      • Go To  2
  2. (A16) FUSED B+ CIRCUIT 
    Fig 1: Using 12-Volt Test Light Connected To Ground To Probe Fused B+ Circuit At Both Med/High Rad Fan Relay & Series/Parallel Rad Fan Relay Connectors
    GC0099916Courtesy of CHRYSLER GROUP, 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  3

      No 

      • Repair the (A16) Fused B+ circuit. Inspect the related fuse and repair as necessary.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. MED/HIGH RAD FAN RELAY 
    Fig 2: Using 12-Volt Test Light Connected To Battery Voltage To Probe Rad Fan Relay Control Circuit At Med/High Rad Fan Relay
    GC0099917Courtesy of CHRYSLER GROUP, 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 STANDARD PROCEDURE .

      No 

      • Go To  4
  4. SERIES/PARALLEL RAD FAN RELAY) 
    Fig 3: Using 12-Volt Test Light Connected To Battery Voltage To Probe Rad Fan Relay Control Circuit At Series/Parallel Rad Fan Relay
    GC0099918Courtesy of CHRYSLER GROUP, 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 STANDARD PROCEDURE .

      No 

      • Go To  5
  5. (N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE 
    Fig 4: Measuring Voltage Of Rad Fan Relay Control Circuit In Med/High Rad Fan Relay Harness Connector
    GC0099919Courtesy of CHRYSLER GROUP, 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 STANDARD PROCEDURE .

      No 

      • Go To  6
  6. (N112) RAD FAN RELAY CONTROL CIRCUIT OPEN 
    Fig 5: Measuring Resistance Of Rad Fan Relay Control Circuit From Med/High Rad Fan Relay Harness Connector To TIPM C11 Harness Connector
    GC0099920Courtesy of CHRYSLER GROUP, 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  7

      No 

      • Repair the open in the (N112) Rad Fan Relay Control circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  7. (N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND 
    Fig 6: Measuring Resistance Between Ground Rad Fan Relay Control Circuit In TIPM C11 Harness Connector
    GC0099921Courtesy of CHRYSLER GROUP, 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 STANDARD PROCEDURE .

      No 

      • Replace the Totally Integrated Power Module in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
scientia non olet · About LEMON Manuals