2004 DAEWOO LACETTI Ground

5A1 – 158IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P1861
EDS 4 OUTPUT SHORTED TO GROUND
Circuit Description
The pressure control valves (EDS valves 3,4,5 and 6) are
precision electronic pressure regulators that control the
operation of the clutches, brakes and lock–up clutch.
The valve reduces the system pressure with which the
downstream solenoid valves and electrical pressure regu-
lating valves are supplied. It is possible to use smaller so-
lenoid valves as a result. The EDS require a constant input
pressure.
Conditions for Setting the DTC
S Output voltage of the EDS 4 is less than 2 volt.
S No DTC P1862, P1863.
S Immediately after the above condition occurs.
Action Taken When The DTC Sets
S The Malfunction Indicator Lamp(MIL) will illuminate.S The TCM will record operating conditions at the
time the diagnostic fails. This information will be
stored in the Failure Records buffer.
S Adopt Emergency/ Substitute mode and constant
4th gear by hydraulic control.
S After ignition OFF/ON : 3rd gear by hydraulic con-
trol. Possible P, R and N also possible.
S Power supply cut off to the EDS valve.
Conditions for Clearing the MIL/DTC
S The MIL will turn OFF when the malfunction has
not occurred after three–ignition cycle.
S A history DTC will clear after 40 consecutive warm
up cycles without a fault.
S Using a scan tool can clear history DTCs.
Diagnostic Aids
S When DTC P1861 sets, the possible cause of fault
could be EDS4 valve.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 159
DAEWOO V–121 BL4
DTC P1861 – EDS 4 Output Shorted To Ground
StepActionValue(s)YesNo
1Perform an On–Board Diagnostic (EOBD) System
Check.
Is the check completed?–Go to Step 2Go to ”On–
Board Diagnos-
tic System
Check”
21. Install the scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Select ”Actuating” on the scan tool.
4. Actuate EDS 4 ON/OFF.
Does the EDS 4 change ON/OFF?ON/OFFGo to ”Diag-
nostic Aids”Go to Step 3
31. Turn the ignition OFF.
2. Disconnect the transaxle wiring connector.
3. Measure the resistance between terminals 5
and 7 of the transaxle wiring connector.
Is the resistance within the values shown?TFT
25°C (77°F)
6 ΩGo to Step 7Go to Step 4
41. Remove the oil pan.
2. Disconnect the wiring connector of EDS 4.
3. Measure the resistance between terminal 2 of
EDS 4 and ground.
4. Measure the resistance between terminal 1 of
EDS 4 and ground.
Is the resistance within the values shown?
Go to Step 6Go to Step 5
5Repair the internal line(EDS 4) for a short to ground.
Is the repair complete?–System OK–
6Replace the EDS 4.
Is the replacement complete?–System OK–
71. Disconnect the transaxle wiring connector and
TCM connector.
2. Measure the resistance between terminal 5 of
the transaxle wiring connector and ground.
3. Measure the resistance between terminal 7 of
the transaxle wiring connector and ground.
Is the resistance within the values shown?
Go to Step 9Go to Step 8
8Repair the transaxle wiring harness for a short to
ground.
Is the repair complete?–System OK–
9Replace the TCM.
Is the replacement complete?–Go to Step 10–
101. After the repair, use a scan tool ”clear info”
function and road tests the vehicle.
2. Review the ”DTC info”.
3. Has the last test failed or is the current DTC
displayed?–Begin diagno-
sis againRepair verified
exit DTC chart

5A1 – 164IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P1864
EDS 5 OUTPUT SHORTED TO GROUND
Circuit Description
The pressure control valves (EDS valves 3,4,5 and 6) are
precision electronic pressure regulators that control the
operation of the clutches, brakes and lock–up clutch.
The valve reduces the system pressure with which the
downstream solenoid valves and electrical pressure regu-
lating valves are supplied. It is possible to use smaller so-
lenoid valves as a result. The EDS require a constant input
pressure.
Conditions for Setting the DTC
S Output voltage of the EDS 5 is less than 2 volt.
S No DTC P1865, P1866.
S Immediately after the above condition occurs.
Action Taken When The DTC Sets
S The Malfunction Indicator Lamp(MIL) will illuminate.S The TCM will record operating conditions at the
time the diagnostic fails. This information will be
stored in the Failure Records buffer.
S Adopt Emergency/ Substitute mode and constant
4th gear by hydraulic control.
S After ignition OFF/ON : 3rd gear by hydraulic con-
trol. Possible P, R and N also possible.
S Power supply cut off to the EDS valve.
Conditions for Clearing the MIL/DTC
S The MIL will turn OFF when the malfunction has
not occurred after three–ignition cycle.
S A history DTC will clear after 40 consecutive warm
up cycles without a fault.
S Using a scan tool can clear history DTCs.
Diagnostic Aids
S When DTC P1864 sets, the possible cause of fault
could be EDS valve.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 165
DAEWOO V–121 BL4
DTC P1864 – EDS 5 Output Shorted To Ground
StepActionValue(s)YesNo
1Perform an On–Board Diagnostic (EOBD) System
Check.
Is the check completed?–Go to Step 2Go to ”On–
Board Diagnos-
tic System
Check”
21. Install the scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Select ”Actuating” on the scan tool.
4. Actuate EDS 5 ON/OFF.
Does the EDS 5 change ON/OFF?ON/OFFGo to ”Diag-
nostic Aids”Go to Step 3
31. Turn the ignition OFF.
2. Disconnect the transaxle wiring connector.
3. Measure the resistance between terminals 5
and 10 of the transaxle wiring connector.
Is the resistance within the values shown?TFT
25°C (77°F)
6 ΩGo to Step 7Go to Step 4
41. Remove the oil pan.
2. Disconnect the wiring connector of EDS 5.
3. Measure the resistance between terminal 2 of
EDS 5 and ground.
4. Measure the resistance between terminal 1 of
EDS 5 and ground.
Is the resistance within the values shown?
Go to Step 6Go to Step 5
5Repair the internal line(EDS 5) for a short to ground.
Is the repair complete?–System OK–
6Replace the EDS 5.
Is the replacement complete?–System OK–
71. Disconnect the transaxle wiring connector and
TCM connector.
2. Measure the resistance between terminal 5 of
the transaxle wiring connector and ground.
3. Measure the resistance between terminal 10 of
the transaxle wiring connector and ground.
Is the resistance within the values shown?
Go to Step 9Go to Step 8
8Repair the transaxle wiring harness for a short to
ground.
Is the repair complete?–System OK–
9Replace the TCM.
Is the replacement complete?–Go to Step 10–
101. After the repair, use a scan tool ”clear info”
function and road tests the vehicle.
2. Review the ”DTC info”.
3. Has the last test failed or is the current DTC
displayed?–Begin diagno-
sis againRepair verified
exit DTC chart

5A1 – 170IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P1867
EDS 6 OUTPUT SHORTED TO GROUND
Circuit Description
The pressure control valves (EDS valves 3,4,5 and 6) are
precision electronic pressure regulators that control the
operation of the clutches, brakes and lock–up clutch.
The valve reduces the system pressure with which the
downstream solenoid valves and electrical pressure regu-
lating valves are supplied. It is possible to use smaller so-
lenoid valves as a result. The EDS require a constant input
pressure.
Conditions for Setting the DTC
S Output voltage of the EDS 6 is less than 2 volt.
S No DTC P1868, P1869.
S Immediately after the above condition occurs.
Action Taken When The DTC Sets
S The Malfunction Indicator Lamp(MIL) will illuminate.S The TCM will record operating conditions at the
time the diagnostic fails. This information will be
stored in the Failure Records buffer.
S Adopt Emergency/ Substitute mode and constant
4th gear by hydraulic control.
S After ignition OFF/ON : 3rd gear by hydraulic con-
trol. Possible P, R and N also possible.
S Power supply cut off to the EDS valve.
Conditions for Clearing the MIL/DTC
S The MIL will turn OFF when the malfunction has
not occurred after three–ignition cycle.
S A history DTC will clear after 40 consecutive warm
up cycles without a fault.
S Using a scan tool can clear history DTCs.
Diagnostic Aids
S When DTC P1867 sets, the possible cause of fault
could be EDS valve.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 171
DAEWOO V–121 BL4
DTC P1867 – EDS 6 Output Shorted To Ground
StepActionValue(s)YesNo
1Perform an On–Board Diagnostic (EOBD) System
Check.
Is the check completed?–Go to Step 2Go to ”On–
Board Diagnos-
tic System
Check”
21. Install the scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Select ”Actuating” on the scan tool.
4. Actuate EDS 6 ON/OFF.
Does the EDS 6 change ON/OFF?ON/OFFGo to ”Diag-
nostic Aids”Go to Step 3
31. Turn the ignition OFF.
2. Disconnect the transaxle wiring connector.
3. Measure the resistance between terminals 5
and 11 of the transaxle wiring connector.
Is the resistance within the values shown?TFT
25°C (77°F)
6 ΩGo to Step 7Go to Step 4
41. Remove the oil pan.
2. Disconnect the wiring connector of EDS 6.
3. Measure the resistance between terminal 2 of
EDS 6 and ground.
4. Measure the resistance between terminal 1 of
EDS 6 and ground.
Is the resistance within the values shown?
Go to Step 6Go to Step 5
5Repair the internal line(EDS 6) for a short to ground.
Is the repair complete?–System OK–
6Replace the EDS 6.
Is the replacement complete?–System OK–
71. Disconnect the transaxle wiring connector and
TCM connector.
2. Measure the resistance between terminal 5 of
the transaxle wiring connector and ground.
3. Measure the resistance between terminal 11 of
the transaxle wiring connector and ground.
Is the resistance within the values shown?
Go to Step 9Go to Step 8
8Repair the transaxle wiring harness for a short to
ground.
Is the repair complete?–System OK–
9Replace the TCM.
Is the replacement complete?–Go to Step 10–
101. After the repair, use a scan tool ”clear info”
function and road tests the vehicle.
2. Review the ”DTC info”.
Has the last test failed or is the current DTC dis-
played?–Begin diagno-
sis againRepair verified
exit DTC chart

5A1 – 240IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Data Link Connector (CAN TYPE) 1.8L DOHC (Delphi 32 bit)
A Connector (Blue)B Connector (Green)C Connector (Gray)
1Solenoid 2Fluid Temperature GroundSelector Lever Line L1
2Not UsedInput Speed Sensor (+)Not Used
3Pressure Control Solenoid Valve
(EDS 4)BAT +Not Used
4TFT SensorInput Speed Sensor (–)Hold Mode Switch
5Stoplamp SwitchOutput Speed Sensor (–)Not Used
6Hold Mode IndicatorSelector Lever Line L3EDS Supply
7DLCInput Speed Sensor GroundEDS Supply
8CAN HighSpeedometerSolenoid Supply
9Solenoid 1Not UsedNot Used
10Pressure Control Solenoid Valve
(EDS 5)Output Speed Sensor (+)Not Used
11Pressure Control Solenoid Valve
(EDS 3)Selector Lever Line L4Not Used
12Pressure Control Solenoid Valve
(EDS 6)GroundNot Used
13Not UsedGroundNot Used
14Not UsedNot UsedNot Used
15Not UsedSelector Lever Line L2IG ON
16CAN LowNot UsedIG ON

5A2 – 26IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
X–1 : TCM Vehicle Side Wiring Connector
A1GroundB1R
A2Pressure Control Solenoid GroundB3Clock
A4Pressure Control SolenoidB4Hold
A5Lock–Up SolenoidB6Input Speed Sensor
A6Ignition (+)B7D
A7CAN (Low)B8N
A11Transmission Fluid Temperature SensorB16Input Speed Sensor Ground
A12Transmission Fluid Temperature Sensor
GroundB18L
A14Timing SolenoidB192
A15Shift Solenoid No.2B20P
A16Shift Solenoid No.1B22Stop Lamp Switch
A17CAN (High)B23DLC
A23GroundB25Output Speed Sensor
A24B+––
X–2 : Transmission Range (TR) Switch Connector
1P
2R
3Ground
42
5N
6ST(–)
7D
81
9ST(+)
X–4 : Output Speed Sensor Connector
1Ignition
2Ground
3Output Speed Sensor
X–3 : Transaxle Wiring Connector
1Transmission Fluid Temperature Sensor
2Timing Solenoid
3Pressure Control Solenoid
4Lock–Up Solenoid
5Shift Solenoid No.1
6Transmission Fluid Temperature Sensor
Ground
8Pressure Control Solenoid Ground
10Shift Solenoid No.2
X–5 : Input Speed Sensor
1Input Speed Sensor Ground
2Input Speed Sensor