Time Lag Test
TIME LAG TESTWhen the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag before the shock can be felt. This is used for checking the condition of the O/D direct clutch, forward clutch, direct clutch, and 1st and reverse brake.
NOTICE:
^ Do the test at normal operating fluid temp.
50 - 80°C (122 - 176°F).
^ Be sure to allow 1 minute interval between tests.
^ Take three measurements and take the average value.
MEASURE TIME LAG
- Fully apply the parking brake
- Start the engine and check idle speed.
Idle speed: 650 - 750 rpm
(In the N position and air conditioner OFF)
- Shift the shift lever from the N to the D position.
- Using a stop watch, measure the time it takes from shifting the lever until the shock is felt.
Time lag: N->D Less than 1.2 seconds
- In same way, measure the time lag for N->R.
Time lag: N->R Less than 1.5 seconds
EVALUATION
If N->D or N->R time lag is longer than specified, refer to the evaluation chart below.
^ If the problem has been determined, repair as necessary.
If not, proceed to the Hydraulic Test.