Reading Diagnostic Trouble Codes

NOTE: Manufacturer does not provide a procedure for displaying and reading trouble codes without using a scan tool.

CAUTION: If battery voltage is low, diagnostic trouble codes may not be output. Be sure to check the battery and charging system before continuing.

CAUTION: If the battery is disconnected or if the powertrain control module connector is disconnected, the diagnostic trouble code memory will be erased. Do not disconnect the battery or powertrain control module until after the diagnostic trouble codes are recorded.

CAUTION: Turn the ignition switch off before connecting or disconnecting the scan tool.

1. Connect the scan tool to the data link connector and read the diagnostic trouble codes.
2. Repair the malfunction while referring to the INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES.
3. Turn the ignition switch to OFF and then back to ON again.
4. Turn off the ignition switch.
5. Check that the diagnostic trouble code is normal.