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 them on the work order.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Go To 10
TRANSFER CASE MOTOR (AWD) OPERATION
1. Turn the ignition off.
2. Disconnect the Transfer Case Motor (AWD) C1 harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light, jump across from the (T315) Shift Motor Control A circuit and the (T316) Shift Control Motor B circuit at the Transfer Case Motor C1 harness connector.
5. With the scan tool, actuate the Transfer Case Motor (AWD).
  Does the test light illuminate brightly and flash on and off?
  
  Yes
  - Go To 9
  No
  - Go To 3
(T316) SHIFT CONTROL MOTOR B CIRCUIT SHORTED TO GROUND
1. Turn the ignition off.
2. Disconnect the DTCM harness connector.
3. Check for continuity between ground and the (T316) Shift Control Motor B circuit at the Transfer Case Motor (AWD) C1 harness connector.
  Is there continuity between ground and the (T316) Shift Control Motor B circuit?
  
  Yes
  - Repair the short to ground in the (T316) Shift Control Motor B circuit.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
(T316) SHIFT CONTROL MOTOR B CIRCUIT OPEN
1. Measure the resistance of the (T316) Shift Control Motor B circuit between the Transfer Case Motor (AWD) C1 harness connector and the DTCM harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Repair the open in the (T316) Shift Control Motor B circuit.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(T315) SHIFT MOTOR CONTROL A CIRCUIT SHORTED TO GROUND
1. Check for continuity between ground and the (T315) Shift Motor Control A circuit at the Transfer Case Motor (AWD) C1 harness connector.
  Is there continuity between ground and the (T315) Shift Motor Control A circuit?
  
  Yes
  - Repair the short to ground in the (T315) Shift Motor Control A circuit.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 6
(T315) SHIFT MOTOR CONTROL A CIRCUIT OPEN
1. Measure the resistance of the (T315) Shift Motor Control A circuit between the Transfer Case Motor (AWD) C1 harness connector and the DTCM harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the open in the (T315) Shift Motor Control A circuit.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
TRANSFER CASE MOTOR (T316) SHIFT CONTROL MOTOR B CIRCUIT SHORTED INTERNALLY
1. Turn the ignition off.
2. Connect the Transfer Case Motor (AWD) C1 harness connector.
3. Check for continuity between ground and the (T316) Shift Control Motor B circuit at the DTCM harness connector.
  Is there continuity between ground and the (T316) Shift Control Motor B circuit?
  
  Yes
  - Repair the short to ground in the (T316) Shift Control Motor B circuit.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 8
DRIVE TRAIN CONTROL MODULE (DTCM)
NOTE:
Before continuing, check the DTCM harness connector terminals for corrosion, damage or terminal push out. Repair as necessary.
1. Using the schematics as a guide, inspect the wiring harness and connectors. Pay particular attention to all Power and Ground circuits.
  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 .
TRANSFER CASE MOTOR (AWD)
NOTE:
Before continuing, check the Transfer Case Motor jumper harness connector terminals for corrosion, damage, or terminals push out, repair/replace as necessary.
1. Using the schematics as a guide, inspect the wiring harness and connectors. Pay particular attention to all Power and Ground circuits.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace Transfer Case Clutch Coil in accordance with Service Information. Refer to COIL, CLUTCH, 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.