Time lag test (AWR6B45)

1. Time lag test

1. Confirm the following condition before the function check.

Perform function inspection after engine inspection and adjustment.

1) ATF temperature is in hot condition.

Standard: 50 to 80 ℃ { 122 to 176 °F }

2) Switch of A/C and light etc are off.

Warning

  • Before performing the function inspection, make sure to secure the vehicle to stop it from jumping out.

2. Time lag test

Time lag is time till slightly shock can be felt when shift lever is shifted N to D and N to R while engine idling.

Time lag test can inspect hydraulic condition, clutch condition and brake condition.

1) Chock 4 wheels and apply parking brake fully, lock vehicle perfectly.

2) Start the engine.

3) Measure time lag by using stopwatch from moment when shift lever is shifted in N to D and N to R until moment slightly shock can be felt.

N to D range
 1.0 sec or less
N to R range
 1.2 sec or less

Caution

  • Make sure to take 3 measurements and take the average value.
  • Make sure to keep interval for more than 1 min between time lag tests.
  • The purpose is to remove remaining clutch and brake pressure.
Result of Time lag test
 Cause of failure
Longer than standards N to D
 Valve body malfunction (SL1 hydraulic system)
C1 clutch slipping
1 way clutch assembly No. 3 malfunction
Oil pump malfunction
Clogged oil strainer
Longer than standards N to R
 Valve body malfunction (SL4 hydraulic system)
B1 and B4 brake slipping
Oil pump malfunction
Clogged oil strainer
Copyright Mazda Motor Corporation. All rights reserved.