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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Pinpoint Test - Output State Control (OSC) Equipped Vehicles



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PINPOINT TESTS - OSC EQUIPPED VEHICLES

Solenoid Operation Chart





a Solenoid state will change if vehicle is moving forward with the selector lever in the NEUTRAL position.

- CB = Clutch brake
- NC = Normally closed
- NH = Normally high
- NL = Normally low
Shift Solenoid A (SSA)





Shift Solenoid B (SSB)





a Reverse is available if the solenoid circuit failed causing transaxle solenoid power control solenoid to remove voltage to all solenoids.Shift Solenoid C (SSC)





Shift Solenoid D (SSD)





a Reverse is available if the solenoid circuit failed causing transaxle solenoid power control solenoid to remove voltage to all solenoids.b No engine braking.Shift Solenoid E (SSE)





a No engine braking.