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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Information Bus: Testing and Inspection

DATA LINK CONNECTOR
If there is a fault detected in the Data Link circuit it will normally be detected when trying to obtain trouble codes and the accessing of the Powertrain Control Module (PCM) diagnostics. If that is the case, refer to Procedures / Diagnostic Charts / Chart A-1 No "Service Engine Soon" Light or Chart A-2 Won't Flash DTC 12 - No Serial Data, MIL on Steady. Testing and Inspection