Reading Diagnostic Trouble Codes
How to Use the HDS to Check for DTCsIf the IMA system indicator has come on
1. Start the engine and check the IMA system indicator (A).
2. If the IMA system indicator stays on, turn the ignition switch OFF, then connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
3. Turn the ignition switch ON (II).
4. Select IMA SYSTEM on the HDS.
5. Check the diagnostic trouble code (DTC) and note it. Also check the freeze data. Refer to the DTC troubleshooting and begin the appropriate troubleshooting procedure.
NOTE: For specific operations, refer to the user's manual that came with the HDS.
If you can't duplicate the DTC
Some of the troubleshooting requires you to reset the MCM and try to duplicate the DTC. If the problem is intermittent and you can't duplicate the code, do not continue through the procedure. To do so will only result in confusion and, possibly, a needlessly replaced MCM.