Time Lag Test

A: INSPECTION
1. GENERAL INFORMATION
If the shift lever is shifted while the engine is idling, there will be a certain time elapse or lag before the shock can be felt. This is used for checking the condition of the low clutch, reverse clutch, low & reverse brake and one-way clutch.

CAUTION:
- Perform the test at normal operation fluid temperature 60 to 80°C (140 to 176°F).
- Be sure to allow a one minute interval between tests.
- Make three measurements and take the average value.

2. TEST METHODS
1. Fully apply the parking brake.
2. Start the engine. Check idling speed (A/C OFF). "N" range: 800 ± 100 rpm
3. Shift the shift lever from "N" to "D" range. Using a stop watch, measure the time it takes from shifting the lever until the shock is felt. Time lag: Less than 1.2 seconds
4. In same manner, measure the time lag for "N" -> "R". Time lag: Less than 1.5 seconds

3. EVALUATION
1. If "N" -> "D" time lag is longer than specified:
- Line pressure too low
- Low clutch worn
- One-way clutch not operating properly
2. If "N" -> "R" time lag is longer than specified:
- Line pressure too low
- Reverse clutch worn
- Low & reverse brake worn