Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. With the scan tool, read DTCs.
  Does the scan tool display DTC: P0693-COOLING FAN 2 CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 2.
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
RADIATOR FAN HIGH RELAY
1. Turn the ignition off.
2. Remove the Radiator Fan High Relay and substitute it with a known good relay.
3. Turn the ignition on.
4. With the scan tool, clear all DTCs.
5. Turn the ignition off.
6. Turn the ignition on.
7. With the scan tool, read DTCs.
  Does the scan tool display DTC: P0693-COOLING FAN 2 CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 3.
  No
  - Replace the Radiator Fan High Relay.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (W24) FUSED RUN RELAY OUTPUT CIRCUIT FOR AN OPEN

Fig 1: Checking Headlamp Washer Relay Control Circuit In High Speed Cooling Fan Relay Harness Connector
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Remove the Radiator Fan High Relay.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (W24) Fused Run Relay Output circuit.
  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
  - Go To 4.
  No
  - Repair the open or high resistance in the (W24) Fused Run Relay Output circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (K175) RAD FAN HIGH SPEED CONTROL CIRCUIT FOR A SHORT TO GROUND

Fig 2: Measuring Resistance Between Ground & Radiator Fan Control Circuit At High Speed Cooling Fan Relay Harness Connector
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C3 harness connector.
3. Measure the resistance between ground and the (K175) Rad Fan High Speed Control circuit.
  Is the resistance above 10k Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the short to ground in the (K175) Rad Fan High Speed Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (K175) RAD FAN HIGH SPEED CONTROL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE

Fig 3: Measuring Resistance Of High Speed Cooling Fan Relay Control Circuit From C3 TIPM Harness Connector To Relay Connection
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (K175) Rad Fan High Speed Control circuit from the TIPM C3 harness connector to the Radiator Fan High Relay.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 6.
  No
  - Repair the open or high resistance in the (K175) Rad Fan High Speed Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
TOTALLY INTEGRATED POWER MODULE (TIPM)
NOTE:
Before continuing, check the TIPM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
1. Using the schematics as a guide, inspect the wire harness and connectors.
  Pay particular attention to all Power and Ground circuits.
  
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the TIPM in accordance with the Service Information. Refer to MODULE, Totally Integrated Power (TIPM) , Removal .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .