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

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Component Tests and General Diagnostics





Inspection of voltage
1. Remove the speedometer sensor







2. Measure voltage between terminals of the speedometer sensor while rotating the driven gear.
3. Install the speedometer sensor.




Inspection of wave form
1. Connect the oscilloscope to the transmission control module at terminal 1P.
2. Inspect the wave form as shown in the figure.