Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

VERIFY DTC IS ACTIVE
NOTE: For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.
1. Ignition on, engine off.
2. With the scan tool, read the DTCs.
  Is this DTC active?
  
  Yes
  - Go to step 2
  No
  - Refer to Non-DTC Diagnostics/Communication - Diagnosis and Testing and perform the Stored Lost Communication DTC 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 B or 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 DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing and perform the appropriate diagnostic procedure.
  No
  - Go to step 3
VERIFY THAT THE ECM/PCM IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. With the scan tool, select Network Diagnostics.
3. Verify that the ECM/PCM is active on the bus.
  Is the ECM/PCM active on the bus?
  
  Yes
  - Go to step 4
  No
  - Refer to Non-DTC Diagnostics/Communication - Diagnosis and Testing and perform the No Response from ECM/PCM 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 ECM/PCM?
  
  Yes
  - Replace/update the ECM/PCM in accordance with the Service Information.
  - Perform the appropriate VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure for gas engine applications or. Refer to DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure for diesel engine applications.
  No
  - Replace/update the module that set this DTC in accordance with the Service Information.
  - Perform the AWD VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, All Wheel Drive (AWD) - Standard Procedure .