Time Lag Test

Time Lag Test

This test is performed to check conditions of clutch, brake and fluid pressure. "Time lag" means time elapsed since select lever is shifted with engine idling till shock is felt.
1) Connect scan tool to DLC.
2) Select "Data list" mode on scan tool.
3) Drive vehicle so that CVT fluid temperature reaches normal operating temperature (50 - 80 °C (122 - 176 °F)). Scan Tool Testing and Procedures

NOTE:
Engine coolant temperature rises when revving engine in "P" or "N" range, but CVT fluid temperature does not rise in "P" or "N" range. Be sure to drive vehicle in order to raise CVT fluid temperature.

4) Apply parking brake and block wheels.
5) Start engine.
6) Depress brake pedal.
7) With stopwatch ready, shift select lever from "N" to "D" range and measure time from that moment till shock is felt.
8) Similarly measure time lag by shifting select lever from "N" to "R" range.

Gear shifting time lag
"N" -> "D": Less than 3.0 sec.
"N" -> "R": Less than 3.0 sec.

NOTE:
- When repeating this test, be sure to wait at least 1 minute after select lever is shifted back to "N" range.
- Engine should be warmed up fully for this test.
- Repeat test 3 times and take average of those data for final time lag data.

Troubleshooting