Specifications

5A2 – 30IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Manual Shifting Test
Manual shifting test is to determine whether failure symp-
tom is within electrical failure or mechanical failure.
1. Disconnect wire harness of shift solenoid, check
the range and gear positions correspond with below
table when driving by manual shifting.
Range Gear
D 3rd gear
R Reverse
Notice : Make sure to disconnect only wire harness of shift
solenoid.
UNIT INSPECTION
Drive Plate Deflection
S Inspect drive plate deflection if within standard
value.
Standard Value within 0.2mm (0.008 in)
Action :
Standard value is not within the specified value, replace
drive plate.
When ”abnormal wear” or ”stick” on torque converter
sleeve or oil pump is found, replace torque converter and
A/T.
Notice :
S When assembling torque converter and drive plate.
Be sure to use correct bolt with correct length. The
bolt pushes up torque converter front cover, and it
damages lock–up clutch lining. As a result, it cause
major failure ”No move”.
S Do not tighten the bolts by using impact wrench.
Cooler Pipe Bending and Choke
S Inspect it whether there is abnormal pipe bending in
the cooler pipe, pipe deformation and small cross–
section area of pipe line.
Action : Replace failure parts.
S Apply compressed air of 2kg/cm
2
from cooler pipe
inlet side, inspect whether there is not cooler pipe
choke by confirming air flow smooth.
Action : Remove foreign particles and clean inside of pipe
line.
Normal
Vehicle Speed Sensor
1. Remove the connector of vehicle speed sensor,
connect 12V power supply and voltmeter to the ter-
minal.(Do not mistake polarity)
2. Check voltage change from approx. 0V to 12V with
vehicle speed sensor driven gear rotated.
Notice : The voltage change should be 4 times for 1 revo-
lution of the vehicle speed sensor driven gear.
Action : If the result of inspection is bad, replace the ve-
hicle speed sensor.