Diagnostic Test

WARNING: This page is about a different car, the 2015 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCM DTCs and record on work order.
3. With the scan tool, erase DTCs.
4. With the scan tool, read DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Go To 7
(K594) DRIVE TRAIN SENSOR RETURN CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the DTCM harness connector.
3. Disconnect the Transfer Case Motor C2 harness connector.
4. Measure the resistance of the (K594) Drive Train Sensor Return circuit between the DTCM harness connector and Transfer Case Motor C2 harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Repair the (K594) Drive Train Sensor Return circuit for an open.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
(K504) DRIVE TRAIN 5-VOLT SUPPLY CIRCUIT OPEN
1. Measure the resistance of the (K504) Drive Train 5-volt Supply circuit between the DTCM harness connector and Transfer Case Motor C2 harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (K504) Drive Train 5-volt Supply circuit for an open.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(K504) DRIVE TRAIN 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
1. Turn the ignition on.
2. Measure the voltage between ground and the (K504) Drive Train 5-volt Supply circuit in the DTCM harness connector.
  Is the voltage above 7.0 volts?
  
  Yes
  - Repair the (K504) Drive Train 5-volt Supply circuit for a short to voltage.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
DRIVE TRAIN THERMISTOR SENSOR
1. Turn the ignition off.
2. Connect the Transfer Case Motor C2 harness connector.
3. Measure the resistance between the (K504) Drive Train 5-volt Supply circuit and the (K594) Drive Train Sensor Return circuit in the DTCM harness connector.
  Is the resistance above 100K Ohms?
  
  Yes
  - Replace the Drive Train Thermistor Sensor in accordance with the Service Information.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 6
DRIVE TRAIN CONTROL MODULE (DTCM)
1. Using the wiring diagram/schematic as a guide, inspect all wiring harness and connectors that pertain to this circuit.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Drive Train Control Module (DTCM) in accordance with Service Information. Refer to MODULE, DRIVETRAIN CONTROL, REMOVAL .
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
INTERMITTENT WIRING HARNESS AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring harness and connectors specific to this circuit.
3. Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
4. With the scan tool, monitor the data related to this circuit while performing the wiggle test. Look for the data to change or for the DTC to reset.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test Complete.