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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Test O

PINPOINT TEST O: THE LEFT REAR HEATED SEAT IS INOPERATIVE - DOES NOT OPERATE IN LOW

Test O1:

Test O2-O3:

Normal Operation
The heated seat switch uses circuit 10-HC21 (GY/OG) for the low setting input to the heated seat module.

Possible Causes
A driver heated seat that does not operate in low can be caused by:
- wiring, terminals, or connectors.
- a faulty heated seat switch.
- a faulty heated seat module.