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)

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How to Substitute the PCM

How to Substitute the PCM
1. Connect the HDS to the DLC.
2. Turn the ignition switch ON (II).
3. Turn the ignition switch OFF.
4. Jump the SCS line with the HDS.
5. Remove the PCM, and install a known-good PCM.
6. Open the SCS line with the HDS.
7. Turn the ignition switch ON.

NOTE: For 2005-2006 models: DTC P0630 VIN Not Programmed or Mismatch will be stored because VIN has not been programmed into the PCM; ignore it, and continue this procedure.

8. Input the VIN to the PCM with the HDS.
9. Rewrite the immobilizer code with the PCM replacement procedure in the HDS; it allows you to start the engine.
10. Reset the PCM with the HDS.
11. Do the PCM idle learn procedure
12. Do the CKP pattern clear/CKP pattern learn procedure.