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
If it fails: lemon-manuals.org.ua

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Diagnostic Trouble Code Descriptions

Carry out On-Board Diagnostics

NOTE: If equipped, turn the Power Take-Off (PTO) unit off to ensure correct test results. For a description of PTO operation, refer to Transmission Electronic Control System. On-Board Diagnostic is not accessible when the PTO is in operation.

After a road test, with the vehicle warm and before disconnecting any connectors, carry out the Quick Test using the scan tool.