Time Lag Test
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Toyota RAV4, 2002 Toyota Highlander, 2002 Toyota Camry, 2002 Lexus RX 300, and 2001 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Perform this test at normal operating fluid temperature of 122-176°F (50-80°C). Allow one minute between tests. Record 3 measurements and average results.
- If selector lever is actuated with engine idling, a time lag will be noted before shock can be felt. This test is used for checking condition of underdrive clutch, forward clutch, direct clutch and 1st/reverse brake.
- Apply parking brake. Connect scan tool to DLC3 to monitor engine RPM. Start engine. Ensure idle speed is 650-750 RPM with transaxle in Neutral and A/C off. Move selector lever from "N" to "D" position. Use a stop watch to measure elapsed time between shifting lever until shock is felt.
- Standard time lag is less than 1.2 seconds. Repeat test to measure time lag for "N" to "R" position. Standard time lag is less than 1.5 seconds. If "N" to "D" position time lag is longer than specified, line pressure is too low, forward clutch may be worn or No. 2 one-way clutch is not operating properly.
- If "N" to "R" position time lag is longer than specified, direct clutch may be worn, 1st/reverse brake may be worn, line pressure is too low or No. 2 one-way clutch may be worn.