Mazda 626 Station Wagon, Workshop Manual, Page: 230 / 577

AUTOMATIC TRANSAXLE
Time Lag Test
1. Perform mechanical system test preparation. (See K2-21 MECHANICAL SYSTEM TEST, Mechanical System
Test Preparation.)
2. Use a stopwatch to measure the time it takes from shifting until shock is felt when shifting the selector lever
from N position to D range (non-HOLD mode). Take three measurements for each test and take the average
from the results using the following formula.
Formula: Average time lag = Time 1 + Time 2 + Time 3
3. Perform the test for the following shifts in the same manner as Step 2.
• N position-*D range (HOLD mode)
• N position-*R position
Time lag
N position-»D range: 0.4—0.7 sec
N position-»R position: 0.4—0.7 sec
Evaluation o f tim e lag test
Condition Possible cause
N-»D shift
More than specification
Insufficient line pressure
Forward clutch slipping
Oil leaking from forward clutch fluid circuit
Shift solenoid A not operating properly
Less than specification
Forward accumulator not operating properly
Shift solenoid A not operating properly
Excessive line pressure
N -D (HOLD) shift
More than specification
Insufficient line pressure
Forward clutch slipping
Shift solenoid A not operating properly
Less than specification
Forward accumulator not operating properly
Shift solenoid A not operating properly
Excessive line pressure
N-R shift
More than specification
Insufficient line pressure
Low and reverse brake slipping
Reverse clutch slipping
Shift solenoid B not operating properly
Less than specification
Servo apply accumulator not operating properly
Shift solenoid B not operating properly
Excessive line pressure
K2-23