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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Seat Temperature Switch: Testing and Inspection

Seat Heater Switch Inspection (If Equipped)

With seat heater switch (1) pressed, measure seat heater switch resistance at auto A/C panel connector between the following terminals: "12" and "21" for driver seat; "12" and "16" for passenger seat.
If check result is not as specified, replace auto A/C panel.

Seat heater switch standard resistance
: 6.6 - 8 M Ohms at 20 °C (68 °F)