Specifications
5A2 – 96IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTC U2105 CAN Error
Step Action Value(s) Yes No
1
1. 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 2 Repair the tem-
porary connec-
tion failure of
connector.
2
1. Select Request DTC by Status from the Diag-
nostic Trouble Codes Information menu.
2. Request DTC by Status.
Is DTC U2105 displayed?
– Go to Step 3 Repair the tem-
porary connec-
tion failure of
connector.
3
1. Turn the ignition OFF.
2. Disconnect the TCM wiring connector and
ECM wiring connector.
3. Measure the resistance between terminal A17
of the TCM wiring connector and terminal 88 of
the ECM wiring connector.
4. Measure the resistance between terminal A7 of
the TCM wiring connector and terminal 57 of
the ECM wiring connector.
Is the resistance within the values shown?
0 W Go to Step 5 Go to Step 4
4 Repair the malfunctioning terminals as necessary.
Is the action complete?
– System OK –
5
1. Turn the ignition ON.
2. Measure the voltage of terminal A17.
3. Measure the voltage of terminal A7.
Is the voltage within the values shown?
11–14 v Go to Step 6 Go to Step 7
6 Repair the malfunctioning terminals as necessary.
Is the action complete?
– System OK –
7
1. Replace the TCM.
2. Turn the ignition OFF.
3. Turn the ignition ON.
4. Check if U2105 DTC is set.
Is the DTC set?
– Go to Step 8 Go to Step 9
8 Replace the ECM.
Is the action complete?
– Go to Step 9 –
9
1. After the repair, use a scan tool ”clear info”
function and road test the vehicle.
2. Review the ”DTC info”.
Has the last test failed or is the current DTC dis-
played?
– Begin diagno-
sis again
Repair verified
exit DTC chart