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)

Or, hide this message: temporarily or permanently

Test 1.

IGNITION SWITCH OFF

NOTE: All measurements are made with the fan controller connection connected. Battery Voltage (B+) should be a minimum of 12.0V.


Pin # 1 B+, coolant temp. <221°F
Pin # 1 0.0V, coolant temp. >221°F

Pin # 2 not used

Pin # 3 B+, coolant temp. >221°F
Pin # 3 0.0V, coolant temp. <221°F

Pin # 4 B+

Pin # 5 0.0V

Pin # 6 0.0V

Pin # 7 0.0V

Pin # 8 0.0V

Pin # 9 0.0V

Pin # 10 0.0V