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

Selecting and Viewing PIDs

Selecting and Viewing PIDs

NGS Selection Menu:






1. Select VEHICLE AND ENGINE SELECTION and enter the proper year, vehicle and engine package from the menu.

2. Select DIAGNOSTIC DATA LINK.

3. Select POWERTRAIN CONTROL MODULE (PCM).

4. Select PID/DATA MONITOR AND RECORD.


NGS Selection Menu:






5. Select the PIDs from the intermittent symptom chart or the PCM Pinpoint test. The star symbol next to each PID on the screen indicates that PID has been selected.

6. Turn ignition key "On" or start vehicle.

7. Select the START key and access the PIDs.