Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Reading and Clearing Diagnostic Trouble Codes

Reading Codes:






CAUTIONS:
- If battery voltage is low, diagnostic trouble codes may not be output. Be sure to check the battery and charging system before continuing.
- If the battery is disconnected or if the EATX-ECM connector is disconnected, the diagnostic trouble code memory will be erased. Do not disconnect the battery or EATX-ECM until after the diagnostic trouble codes are recorded.
- 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. Erase the diagnostic trouble codes using the scan tool.
5. Check that the diagnostic trouble code is normal.