Time Lag Test: Procedure

Fig 1: Illustrating Time Lag Test Preparation

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1. Start engine.
2. Check idle speed in P range.

   Idle speed: 750-850 rpm (with parking brake applied) 

3. Shift from N range to D range.
4. Use a stopwatch to measure time it takes from shifting until shock is felt.
5. Shift selector to N range and run engine at idle speed for at least one minute.
   NOTE: Make three measurements for each test and take average value.
6. Perform test for following shifts in same manner.
   1. N to D range
   2. N to D range (O/D OFF MODE)
   3. N to R range

   Time lag: N to D range 0.5-0.6 seconds 

   Time lag: N to R range 0.6-0.7 seconds 

Evaluation of time lag test

Fig 2: Time Lag Test Possible Cause Chart

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