sensor DAEWOO LACETTI 2004 Service Repair Manual

AISIN AUTOMATIC TRANSAXLE 5A2 – 75
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0751
SHIFT SOLENOID 1 (SS1) STUCK OFF
Conditions for Setting the DTC
S Shift Solenoid 1 (SS1) is stuck ON/OFF.
S D range selected
S Engine water normal temperature
S 20 seconds have passed since the transaxle was
placed in D.
S Engine revolution is 600 rpm or greater.
S No failure of output speed sensor / input speed
sensor / engine revolution / water temperature sig-
nal / solenoid electrical / ranger sensor / throttle
signal
Action Taken When the DTC SetsS TCM will request the illumination of MIL and store
DTC when TCM detects failures on two consecu-
tive ignition cycles.
Conditions for Clearing the DTC
S The TCM turns off the MIL when no further failures
detected for three consecutive ignition cycles.
S The scan tool can clear the DTC from the TCM his-
tory.
S The TCM clears the DTC from the TCM history
memory after forty consecutive warm up cycles
without fault.
Cause of Failure
S Shift Solenoid 1 (SS1)
S Inside Valve Body
S TCM

5A2 – 80IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0756
SHIFT SOLENOID 2 (SS2) STUCK OFF
Conditions for Setting the DTC
S Shift Solenoid 2 (SS2) is stuck ON/OFF.
S D range selected
S Engine water normal temperature
S 20 seconds have passed since the transaxle was
placed in D.
S Engine revolution is 600 rpm or greater.
S No failure of output speed sensor / input speed
sensor / engine revolution / water temperature sig-
nal / solenoid electrical / ranger sensor / throttle
signalAction Taken When the DTC Sets
S TCM will request the illumination of MIL and store
DTC when TCM detects failures on two consecu-
tive ignition cycles.
Conditions for Clearing the DTC
S The TCM turns off the MIL when no further failures
detected for three consecutive ignition cycles.
S The scan tool can clear the DTC from the TCM his-
tory.
S The TCM clears the DTC from the TCM history
memory after forty consecutive warm up cycles
without fault.
Cause of Failure
S Shift Solenoid 2 (SS2)
S Inside Valve Body
S TCM

5A2 – 106IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Installation Procedure
1. Connect the connectors to the shift select cover.
2. Install the shift select cover to the housing.
3. Install the shift select lever knob.
4. Install the floor console. Refer to Section 9G, Interi-
or Trim.
5. Connect the negative battery cable.
INPUT SHAFT SPEED (ISS) SENSOR
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the input shaft speed (ISS) sensor elec-
trical connector.
3. Remove the ISS sensor retaining bolt.
4. Remove the ISS sensor from the transaxle.

AISIN AUTOMATIC TRANSAXLE 5A2 – 107
DAEWOO V–121 BL4
Installation Procedure
Notice : Lubricate the O–ring with ISU DEXRON III.
1. Install a new O–ring on the ISS sensor.
2. Install the ISS sensor and retaining bolt into the
transaxle case.
Tighten
Tighten the ISS sensor retaining bolt to 5.4 NSm (48
Ib–in).
3. Connect the ISS sensor electrical connector.
4. Connect the negative battery cable.
OUTPUT SHAFT SPEED (OSS)
SENSOR
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the output shaft speed (OSS) sensor
electrical connector.
3. Remove the OSS sensor retaining bolt.
4. Remove the OSS sensor from the transaxle.

5A2 – 108IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Installation Procedure
Notice : Lubricate the O–ring with ISU DEXRON III.
1. Install a new O–ring on the output shaft speed
(OSS) sensor.
2. Install the OSS sensor and retaining bolt into the
transaxle.
Tighten
Tighten the OSS sensor retaining bolt to 7.4 NSm (65
Ib–in).
3. Connect the OSS sensor electrical connector.
4. Connect the negative battery cable.
TRANSMISSION CONTROL MODULE
(TCM)
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the transmission control module (TCM)
electrical connector.
3. Remove the TCM retaining bolts.
4. Remove the TCM.

5A2 – 112IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
7. Disconnect the input shaft speed (ISS) sensor elec-
trical connector.
8. Disconnect the output shaft speed (OSS) sensor
electrical connector.
9. Disconnect the Transmission Range (TR) Switch
electrical connector.
10. Disconnect the transaxle electrical connector.
11. Remove the service hall cover.
12. Remove the three torque converter bolts.
13. Remove the damping block connection nut and
bolt.
14. Remove the rear mounting bracket bolts and rear
mounting bracket.
15. Remove the three upper transaxle mounting brack-
et bolts.

AISIN AUTOMATIC TRANSAXLE 5A2 – 115
DAEWOO V–121 BL4
5. Install the rear mounting bracket bolts and the
bracket.
Tighten
Tighten the rear mounting bracket bolts to 60 NSm (44
Ib–ft).
6. Install the damping block connection nut and bolt.
Tighten
Tighten the damping block connection nut and bolt to
80 NSm (59 Ib–ft).
7. Install the torque converter bolts.
Tighten
Tighten the torque converter bolts to 45 NSm (33 Ib–
ft).
8. Install the service hall cover.
9. Connect the transaxle electrical connector.
10. Connect the TR switch electrical connector.
11. Connect the OSS sensor electrical connector.
12. Connect the ISS sensor electrical connector.
13. Remove engine support fixture DW110–060.
14. Connect the shift control cable into the transaxle.
Refer to ”Shift Control Cable” in this section.

5A2 – 118IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
8. Remove the screw plug from the transaxle case.
9. Remove the O–ring from the screw plug.
10. Remove the bolt and the input shaft speed (ISS)
sensor.
11. Remove the breather plug.
12. Remove the O–ring from the breather plug.
13. Remove the bolt and the output shaft speed (OSS)
sensor.
14. Remove the 18 bolts.
15. Remove the oil pan and gasket.
16. Remove the drain plug from the oil pan.

AISIN AUTOMATIC TRANSAXLE 5A2 – 119
DAEWOO V–121 BL4
17. Remove the three bolts and oil strainer.
18. Remove the gasket from the oil strainer.
19. Remove the bolt and transmission fluid temperature
sensor with the clamp.
20. Disconnect the 5 solenoid connectors.
a. Lock–up control solenoid
b. Pressure control solenoid.
c. No.2 shift solenoid.
d. No.1 shift solenoid.
e. Timing solenoid
21. Support the valve body assembly and remove the
14 bolts.

5A2 – 162IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
114. Connect the manual valve control rod to the
manual valve lever as shown in the illustration.
115. Install the valve body assembly to the trans-
axle case.
Tighten
Tighten the bolts to 11 NSm (97 lb–in).
Notice : When installing the valve body to the transaxle
case, do not let each of accumulator pistons B1,C1,and
C2 incline. When installing the valve body to the transaxle
case, do not hold the solenoids.
116. Connect the transaxle wire connector and har-
ness to the valve body assembly.
117. Connect the 5 connectors.
a. Lock–up control solenoid
b. Pressure control solenoid.
c. No.2 shift solenoid.
d. No.1 shift solenoid.
e. Timing solenoid
118. Install the TFT sensor with clamp.
Notice : Make sure that the transaxle wire does not come
out from the oil pan installation surface.
119. Install a new gasket to the oil strainer.