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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Component Inspection





Tire Pressure Monitoring
C1663 Auto Location Failure - Inspection/Repair:_:Component Inspection

Component Inspection

1. Connect GDS and select "Diagnostic Trouble Codes(DTCs)" mode.
2. Using a GDS, Clear DTC.
3. IG OFF -> IG ON.
4. After driving at 20 km/h for approx. 10 - 20 minutes, check if there is a DTC happened.
5. Are any DTCs present ?