Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

RADIATOR COOLING FAN MODULE OPERATION
1. Ignition on, engine not running.
2. With a scan tool, actuate both the Radiator Cooling Fan Relays No. 1 and No. 2.
  Are both cooling fan operating at medium speed?
  
  Yes
  - Refer to STANDARD PROCEDURE and perform the INTERMITTENT CONDITION diagnostic procedure.
  No
  - Go To 2.
(N112) RAD FAN RELAY CONTROL CIRCUIT OPEN
1. Measure the resistance of the (N112) Rad Fan Relay Control circuit from the High Rad Fan Relay harness connector to the PCM C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 3.
  No
  - Repair the open in the (N112) Rad Fan Relay Control circuit.
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION.
(N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND

Fig 1: Checking Rad Fan Relay Control Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (N112) Rad Fan Relay Control circuit in the PCM C1 harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (N112) Rad Fan Relay Control circuit.
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION.
  No
  - Replace the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION.