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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Clear Memory Codes



HOW TO CLEAR MEMORY CODES:

NOTE:
Do not disconnect battery to clear Continuous Memory Codes. This will erase the Keep Alive Memory (KAM) information which may cause a driveability problem.

1. Run the Key On Engine Off Self-test according to Quick Test instructions. See COMPUTERIZED ENGINE CONTROLS

2. When the service codes begin to be displayed, deactivate Self-Test:

a. STAR Tester: Unlatching the center button (up position).

b. Analog VOM Malfunction Indicator Light (MIL), Overdrive Cancel Indicator Light (OCIL), Message Center: Remove the jumper wire from between the Self-test input (STI) connector and the signal return pin of the self-test connector.

3. The Continuous Memory codes will be erased from the processor's memory.