Time Lag Test: Notes

Perform mechanical system test preparation. (See MECHANICAL SYSTEM TEST PREPARATION .)
Start the engine.
Warm up the engine until the ATF temperature reaches 60-70°C {140-158°}. Shift the selector lever from N position to D range.
Use a stopwatch to measure the time it takes from shifting until engagement is felt. Take three measurements for each test and average the results using the following formula.
Formula
1. Average time lag = (Time 1 + Time 2 + Time 3) /3
Perform the test for the following shifts in the same manner.
- N position --> P position
Time lag
1. N --> D range... approx. 0.5-1.0 second
2. N --> R position... approx. 0.6-1.1 second