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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Shift Point Road Test




Shift Point Road Test





NOTE: Shift speed ranges are approximate for all applications.

This test verifies that the shift control system is operating correctly.

1. Bring engine and transaxle up to normal operating temperature.

2. Operate vehicle with selector lever in D range.

3. Using the shift speed charts, apply minimum throttle and observe the speeds at which the transaxle upshifts. The transaxle will upshift 1st through 6th gears.

4. Press the accelerator pedal to the floor, Wide Open Throttle (WOT). The transaxle should downshift to the next lower gear depending on the vehicle speed. The Torque Converter Clutch (TCC) should release.

Shift Speed





5. If the transaxle fails to upshift/downshift or the TCC does not apply and release, refer to Diagnosis By Symptom Diagnosis By Symptom for possible causes.