2004 DAEWOO NUBIRA Service Repair Manual

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Page 1657 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual AISIN AUTOMATIC TRANSAXLE 5A2 – 67
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0742
TORQUE CONVERTER CLUTCH (TCC) CIRCUIT STUCK
ON
Conditions for Setting the DTC
S Lockup solenoid is stuck

Page 1658 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 5A2 – 68IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTC P0742 Torque Converter Clutch (TCC) Circuit Stuck On
StepActionValue(s)YesNo
11. Turn the ignition OFF.
2. Install the Scan tool.
3. With

Page 1659 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual AISIN AUTOMATIC TRANSAXLE 5A2 – 69
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0743
TORQUE CONVERTER CLUTCH (TCC) ELECTRICAL
Conditions for Setting the DTC
S TCM detects that the ON signal

Page 1660 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 5A2 – 70IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTC P0743 Torque Converter Clutch (TCC) Electrical
StepActionValue(s)YesNo
11. Turn the ignition OFF.
2. Install the Scan tool.
3. With the e

5A2 – 70IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTC P0743 Torque Converter Clutch (TCC) Electrical
StepActionValue(s)YesNo
11. Turn the ignition OFF.
2. Install the Scan tool.
3. With the engine OFF, turn the ignition switch to
the ON position.
4. Select Store Freeze Frame/Failure Records
from the Diagnostic Trouble Codes Information
menu.
5. Store Freeze Frame/Failure Records.
6. Select Clear DTC Information from the Diag-
nostic Trouble Codes Information menu.
7. Clear DTC Information.
8. Perform two vehicle drive cycles.
Is the Malfunction Indicator Lamp (MIL) ON?–Go to Step 2Repair the tem-
porary connec-
tion failure of
connector (Re-
fer to ”Wiring
Harness and
Connector In-
spection” in this
section.)
21. Select Request DTC by Status from the Diag-
nostic Trouble Codes Information menu.
2. Request DTC by Status.
Is DTC P0743 displayed?–Go to Step 3Repair the tem-
porary connec-
tion failure of
connector (Re-
fer to ”Wiring
Harness and
Connector In-
spection” in this
section.)
31. Turn the ignition OFF.
2. Inspect the resistance between the vehicle har-
ness and lock–up solenoid. Refer to ”Unit In-
spection” in this section.
3. Disconnect the TCM connector (X–1) and in-
spect the resistance between the terminal A5
and A23.
Is the measurement within the specified value?20°C (68°F)
11–16 WGo to Step 4Go to Step 5
41. Estimate the failure of between the vehicle wir-
ing harness connector and TCM.
2. Inspect the connector. Refer to ”Wiring Har-
ness and Connector Inspection” in this section.
3. Inspect the connection condition between the
connectors (C–1).
Is the connection condition OK?–Go to Step 6Repair the wir-
ing harness
connectors.
51. Estimate the failure of between the vehicle har-
ness and lockup solenoid.
2. Disconnect the connector (X–3) of T/M wire
and inspect the resistance between lock–up
solenoid connector terminal 4 and ground.
Is the measurement within the specified value?20°C (68°F)
11–16 WGo to Step 7Go to Step 8
61. Replace the master TCM.
2. Perform the reproducing test under user condi-
tion after confirming no DTC.
Is DTC displayed?–Repair the tem-
porary connec-
tion failure of
connector (Re-
fer to ”Wiring
Harness and
Connector In-
spection” in this
section.)Replace the
TCM

Page 1661 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual AISIN AUTOMATIC TRANSAXLE 5A2 – 71
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
71. Estimate the failure of the vehicle wiring har-
ness or between connectors.
2. Inspect continuity and short ci

Page 1662 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 5A2 – 72IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0748
PRESSURE CONTROL SOLENOID (PCS) ELECTRICAL
Conditions for Setting the DTC
S TCM detects that the feed back

Page 1663 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual AISIN AUTOMATIC TRANSAXLE 5A2 – 73
DAEWOO V–121 BL4
DTC P0748 Pressure Control Solenoid (PCS) Electrical
StepActionValue(s)YesNo
11. Turn the ignition OFF.
2. Install the Scan tool.
3. With th

AISIN AUTOMATIC TRANSAXLE 5A2 – 73
DAEWOO V–121 BL4
DTC P0748 Pressure Control Solenoid (PCS) Electrical
StepActionValue(s)YesNo
11. Turn the ignition OFF.
2. Install the Scan tool.
3. With the engine OFF, turn the ignition switch to
the ON position.
4. Select Store Freeze Frame/Failure Records
from the Diagnostic Trouble Codes Information
menu.
5. Store Freeze Frame/Failure Records.
6. Select Clear DTC Information from the Diag-
nostic Trouble Codes Information menu.
7. Clear DTC Information.
8. Perform one vehicle drive cycle.
Is the Malfunction Indicator Lamp (MIL) ON?–Go to Step 2Repair the tem-
porary connec-
tion failure of
connector (Re-
fer to ”Wiring
Harness and
Connector” in
this section.)
21. Select Request DTC by Status from the Diag-
nostic Trouble Codes Information menu.
2. Request DTC by Status.
Is DTC P0748 displayed?–Go to Step 3Repair the tem-
porary connec-
tion failure of
connector (Re-
fer to ”Wiring
Harness and
Connector” in
this section.)
31. Turn the ignition OFF.
2. Inspect the resistance between the vehicle har-
ness and Pressure Control Solenoid (PCS).
Refer to ”Unit Inspection” in this section.
3. Disconnect the TCM connector (X–1) and in-
spect the resistance between the terminal A4
and A2.
Is the measurement within the specified value?20°C (68°F)
5.0–5.6 WGo to Step 4Go to Step 5
41. Estimate the failure of between the vehicle wir-
ing harness connector and TCM.
2. Inspect the connector. Refer to ”Wiring Har-
ness and Connector” in this section.
3. Inspect the connection condition between the
connectors (C–1).
Is the connection condition OK?–Go to Step 6Repair the wir-
ing harness
connectors.
51. Estimate the failure of between the vehicle har-
ness and PCS.
2. Disconnect the connector (X–3) of T/M wire
and inspect the resistance between PCS con-
nector terminal 3 and 8.
Is the measurement within the specified value?20°C (68°F)
5.0–5.6 WGo to Step 7Go to Step 8
61. Replace the master TCM.
2. Perform the reproducing test under user condi-
tion after confirming no DTC.
Is DTC displayed?–Repair the tem-
porary connec-
tion failure of
connector (Re-
fer to ”Wiring
Harness and
Connector” in
this section.)Replace the
TCM

Page 1664 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 5A2 – 74IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
71. Estimate the failure of the vehicle wiring har-
ness or between connectors.
2. Inspect continuity and short cir

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