Diagnostic Test

CHARGING SYSTEM DTCS PRESENT
1. Ignition on, engine not running.
2. With the scan tool, read DTCs in the Powertrain Control Module.
  Are there any Charging System or related voltage DTCs present?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing and perform the appropriate diagnostic procedure before continuing with this test.
  No
  - Go to step 2
CHECK FOR ACTIVE DTC
1. Ignition on, engine not running.
2. With the scan tool, read the active DTC.
3. Cycle the ignition switch from the OFF to ON position, leaving the ignition on for a minimum of 30 seconds.
4. With the scan tool, read the active DTC.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 3
  No
  - Go to step 7
(F943) IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT SHORTED TO VOLTAGE

Fig 1: Checking Ignition Switch Output (Run/Start) Circuit Shorted To Voltage
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C5 harness connector.
3. Disconnect the AWD Control Module harness connector.
4. With a 12-volt test light connected to ground, check the (F943) Ignition Switch Output (RUN/START) circuit in the AWD Control Module harness connector.
  NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
  
  Does the test light illuminate brightly?
  
  Yes
  - Repair the (F943) Ignition Switch Output (RUN/START) circuit for a short to voltage.
  - Perform the AWD Control Module VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, All Wheel Drive (AWD) - Standard Procedure .
  No
  
  Go to step 4
(F943) IGNITION SWITCH OUTPUT (RUN/START) VOLTAGE

Fig 2: Checking Ignition Switch Output (Run/Start) Voltage
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Connect the TIPM C5 harness connector.
3. Ignition on, engine not running.
4. Measure the voltage between (F943) Ignition Switch Output (RUN/START) circuit and ground in the AWD Control Module harness connector.
  Is the voltage greater than 17 volts?
  
  Yes
  - Go to step 6
  No
  - Go to step 5
AWD CONTROL MODULE
NOTE: Before continuing, check the AWD Module 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.
2. Pay particular attention to all Power and Ground circuits.
  View repair.
  
  Repair
  - Replace the AWD Control Module in accordance with the Service information.
  - Perform the AWD Control Module VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, All Wheel Drive (AWD) - Standard Procedure .
TOTALLY INTEGRATED POWER MODULE
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.
2. Pay particular attention to all Power and Ground circuits.
  View repair.
  
  Repair
  - Replace the Totally Integrated Power Module in accordance with the Service Information.
  - Perform the AWD Control Module VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, All Wheel Drive (AWD) - Standard Procedure .
INTERMITTENT WIRING 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 and connectors specific to this circuit.
3. Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
4. Using 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 there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the AWD Control Module VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, All Wheel Drive (AWD) - Standard Procedure
  No
  - Test Complete.