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

On-Board System Readiness Tests Access Procedure

On-Board System Readiness Tests Access Procedure




1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initial screen of the M-MDS.
- When using the IDS (notebook PC)
1. Select the "Toolbox" tab.
2. Select "Powertrain".
3. Select "OBD Test Modes".
4. Select "Mode 1 Powertrain Data".

- When using the PDS (pocket PC)
1. Select "OBD II Modes".
2. Select "Mode 1 Powertrain Data".

3. Then, select the "SUP" and "EVAL" PIDs in the PID selection screen.
4. Monitor those PIDs and check it system monitor is completed.