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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Shift Solenoid Operation Chart

Use the following shift solenoid operation information when performing Pinpoint Test A.

Solenoid Operation Chart - 1 Of 2:




Solenoid Operation Chart - 2 Of 2:






SHIFT SOLENOID FAILURE MODE CHART "ALWAYS OFF"














Failed ON due to powertrain control module and or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck OFF.

SHIFT SOLENOID FAILURE MODE CHART "ALWAYS ON"








Failed OFF due to powertrain control module and or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck ON.