Diagnostic Test

VERIFY DTC IS ACTIVE
NOTE:
Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
1. With the scan tool, read active DTCs.
  Is this DTC active?
  
  Yes
  - Go To 2.
  No
  - Refer to DIAGNOSIS AND TESTING and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.
CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
1. With the scan tool, read all active DTCs from all modules.
  NOTE:
  Check for TIPM configuration, CAN C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.
  
  Does the scan tool display any active DTCs to the conditions listed above?
  
  Yes
  - Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
  No
  - Go To 3.
VERIFY THE DTCM IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. With the scan tool, select Network Diagnostics.
3. Verify the DTCM is active on the bus.
  Is the DTCM active on the bus?
  
  Yes
  - Go To 4.
  No
  - Refer to DIAGNOSIS AND TESTING and perform the NO RESPONSE FROM DTCM diagnostic procedure.
CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS
1. With the scan tool, select Network Diagnostics.
  Is there more than one module with active DTCs "Logged Against" the DTCM?
  
  Yes
  - Replace/update the DTCM in accordance with the Service Information. Refer to MODULE, DRIVETRAIN CONTROL , REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the DTCM VERIFICATION TEST.
  No
  - Go To 5.
CLEAR DTC IN MODULE SETTING FAULT
1. With the scan tool, select the module setting the DTC against the DTCM.
2. Clear active DTCs.
  Is this DTC still active?
  
  Yes
  - Replace/update the module that set this DTC in accordance with the Service Information.
  - Perform the appropriate verification test for the module being replaced. If there is no verification test for the associated module, refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Go To 6.
CYCLE IGNITION
1. Cycle the ignition from RUN to OFF three times ending with the key in the RUN position.
  Does this DTC become active?
  
  Yes
  - Go To 7.
  No
  - The condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
  - Refer to STANDARD PROCEDURE and perform the appropriate VERIFICATION TEST.
CHECK FOR ADDITIONAL LOST COMMUNICATION FAULTS
1. With the scan tool, select Network Diagnostics.
  Does the TIPM and other CAN C BUS modules show Lost Communication with the remaining CAN C BUS modules?
  
  Yes
  - Go To 8.
  No
  - Replace/update the module that set this DTC in accordance with the Service Information.
  - Perform the appropriate verification test for the module being replaced. If there is no verification test for the associated module, refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
(D52) OR (D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE

Fig 1: Measuring Voltage Between CAN C Bus (+) Circuits & Ground
Courtesy of CHRYSLER LLC
1. Measure the voltage between the (D52) CAN C Bus (+) circuit and ground.
2. Measure the voltage between the (D65) CAN C Bus (+) circuit and ground.
  Is the voltage above 5.0 volts?
  
  Yes
  - Repair the short to voltage in the (D52) or (D65) CAN C Bus (+) circuit.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Go To 9.
(D51) OR (D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND

Fig 2: Measuring Resistance Between Ground & CAN C Bus (-) Circuits
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (D51) CAN C Bus (-) circuit.
3. Measure the resistance between ground and the (D64) CAN C Bus (-) circuit.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the short to ground in the (D51) or (D64) CAN C Bus (-) circuit.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Replace/update the module that set this DTC in accordance with the Service Information.
  - Perform the appropriate verification test for the module being replaced. If there is no verification test for the associated module, refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.