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

Functional Check

Functional Check
1. Perform the On-Board Diagnostic System Check.
2. Start the engine and run for least one minute.
3. Check for DTCs using Scan Tool.
4. If the PCM fails to program, proceed as follow:
- Ensure that all PCM connections are OK.
- Check the ITCS for latest version software.
- Attempt to program PCM again. If PCM still cannot be programmed properly, replace PCM. The replacement PCM must be programmed.