Diagnostic Test

CHECK ECM/PCM FOR CHARGING SYSTEM DTC
1. With the scan tool, record and erase DTC's.
2. Cycle the ignition switch from On to Off.
3. Start the engine.
4. Run the engine at approximately 1500 RPM for 1 minute.
5. With the scan tool, read DTCs.
6. With the scan tool, read ECM/PCM DTC's.
  Are there any Charging System DTC's set in the ECM/PCM?
  
  Yes
  - Refer to Electrical/Charging - Diagnosis and Testing or DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing for Charging System diagnostic procedures.
  No
  - The conditions that caused this code to set are not present at this time. Using Service Information, check the charging system.
  - Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .