2004 DAEWOO LACETTI sensor

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 61
DAEWOO V–121 BL4
DTCDefault Action Indication Description
P0703Brake Switch Circuit
MalfunctionNo ChangeS TCM assume that the brake light always active.
S Open lock up clutch.
P0705Transmission Range Sen-
sor Circuit Malfunction
(PRNDL Input)MIL ONS 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 control,
position P, R and N also possible.
P0710S Transmission Fluid
Temperature Sensor
Circuit MalfunctionNo ChangeS TCM assume the transaxle fluid temperature is
140°F (60°C).
S No influence at vehicle running.
P0715S Input Speed Sensor
Circuit MalfunctionMIL ONS 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 control,
position P, R and N also possible.
S Open lock up clutch.
P0716S Input Speed Sensor
Circuit Range/Perfor-
manceMIL ONS 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 control,
position P, R and N also possible.
S Open lock up clutch.
P0717S Input Speed Sensor
Circuit Range/Perfor-
manceMIL ONS 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 control,
position P, R and N also possible.
S Open lock up clutch.
P0720Output Speed Sensor Cir-
cuit MalfunctionMIL ONS 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.
S Open lock up clutch.
P0721Output Speed Sensor Cir-
cuit Range/PerformanceMIL ONS 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.
S Open lock up clutch.

5A1 – 62IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTCDefault Action Indication Description
P0722S Output Speed Sensor
Circuit No SignalMIL ONS The TCM will record operating conditions at the time
the diagnostic fails. This information will be stored in
the Failure Records buffer.
S Vehicle running remains actual gear.
S Open lock up clutch.
P0725S Engine Speed Input
Circuit MalfunctionNo ChangeS Adopt Emergency/Substitute mode and constant 4th
gear.
S Open lock up clutch.
P0726S Engine Speed Input
Circuit Range/Perfor-
manceMIL ONS 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.
S Open lock up clutch.
P0727S Engine Speed Input
Circuit No SignalMIL ONS 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.
S Open lock up clutch.
P0731S Gear 1 Incorrect RatioMIL ONS 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.
S High line pressure
P0732S Gear 2 Incorrect RatioMIL ONS 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 3rd
gear.
S High line pressure.
P0733S Gear 3 Incorrect RatioMIL ONS 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.
S High line pressure
P0734S Gear 4 Incorrect RatioMIL ONS 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 control.
Possible P, R and N also possible.
S High line pressure.

5A1 – 68IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P0562
SYSTEM VOLTAGE LOW
Circuit Description
The transaxle control module(TCM) is an electronic de-
vice which monitors inputs to control various transaxle
functions including shift quality and transaxle sensors,
switches, and components to process for use within its’
control program. Based on this input information, the TCM
controls various transaxle output functions and devices.
Conditions For Setting The DTC
S System voltage is less than 8.5 volts.
S Transaxle input voltage is too low.
S Engine speed is greater than 500 rpm.
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 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 Inspect the poor wiring harness connection for TCM
connectors and transaxle wiring connectors.
S Inspect the improperly formed or damaged termi-
nals.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 71
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P0563
SYSTEM VOLTAGE HIGH
Circuit Description
The transaxle control module(TCM) is an electronic de-
vice which monitors inputs to control various transaxle
functions including shift quality and transaxle sensors,
switches, and components to process for use within its’
control program. Based on this input information, the TCM
controls various transaxle output functions and devices.
Conditions For Setting The DTC
S System voltage is greater than 16 volts.
S Transaxle input voltage is too high.
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.

5A1 – 86IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P0705
TRANSMISSION RANGE SENSOR CIRCUIT
MALFUNCTION (PRNDL INPUT)
Circuit Description
The Transmission range switch is located on the selector
shaft and informs the TCM of the current selector lever
position P–R–N–D–3–2–1.
The selector lever position is transmitted to the TCM in en-
coded form along 4 lines. The encoding is such that mal-
functions in the connecting lead are identified.
The TR switch is located on the selector shaft, which is
connected to the selector lever via a pull cable. In addition,
the TR switch controls the starter interlock, the reverse
lights and the selector lever position indicator on the in-
strument panel.
Conditions for Setting The DTC
S TR switch stuck to closed.
S TR switch wiring harness shortage to ground.
S TR switch wiring harness shortage to power.
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.
Conditions for Clearing the MIL/DTC
S The MIL will turn OFF when the malfunction has
not occurred after three–ignition cycles.
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 P0705 sets, the possible cause of TR
switch.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 87
DAEWOO V–121 BL4
Gear Position And Range Signal Chart.
L1L2L3L4
P00120
R00012
N01200
D1212120
31212012
21201212
10121212
DTC P0705 – Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
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.
3. Record then clear DTC(s) and turn the ignition
OFF, then turn the ignition ON.
4. Applying the brakes and select each transaxle
range (P, R,N,D,3,2,1), while monitoring scan
tool.
Refer to Gear Position And Range Signal Chart.
Does each selected transaxle range match scan tool
and signal range chart?–Go to Step 3Go to ”Diag-
nostic Aids”
3Inspect the F2 for open?
Was a problem found?–Go to Step 4Go to Step 5
4Replace the fuse as necessary.
Is the action complete?–System OK–
5Inspect the TR switch. Refer to ”Diagnostic Aids”.
Was the problem found?–Go to Step 6Go to Step 7
6Replace the TR switch.
Is the action complete?–System OK–
71. Disconnect the TR switch connector and TCM
connector.
2. Measure the resistance between terminal 3 of
the TR switch and terminal C1 of the TCM con-
nector.
3. Measure the resistance between terminal 2 of
the TR switch and terminal B15 of the TCM
connector.
4. Measure the resistance between terminal 4 of
the TR switch and terminal B6 of the TCM con-
nector.
5. Measure the resistance between terminal 5 of
the TR switch and terminal B11 of the TCM
connector.
Is the resistance within the values shown?0ΩGo to Step 9Go to Step 8

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 89
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE(DTC) P0710
TRANSMISSION FLUID TEMPERATURE SENSOR
CIRCUIT MALFUNCTION
Circuit Description
The TFT sensor is a positive temperature coefficient
thermistor (temperature sensitive resistor) that provides
information to the TCM regarding transaxle fluid tempera-
ture. The temperature sensor is located in valve body. Cal-
culated temperature is a factor used to determine the shift
time and shift delay time.
The internal electrical resistance of the sensor varies in
relation to the operating temperature of the transaxle fluid.
The TCM sends a 5 volt–reference signal to the tempera-
ture sensor and measures the voltage rise in the electrical
circuit. A higher fluid temperature creates a higher resist-
ance in the temperature sensor, thereby measuring a
higher voltage signal.
The TCM measures this voltage as another input to help
control line pressure, shift schedules and TCC apply.
When transaxle fluid temperature reaches 120°C (248°F)
the TCM enters ”hot mode.” Above this temperature the
TCM modifies transaxle shift schedules and TCC apply in
an attempt to reduce fluid temperature by reducing trans-
axle heat generation.Conditions for Setting The DTC
S The calculated temperature is compared with the
predetermined min. and max. value.
S If the temperature is less than min. value or greater
than max value then the current temperature is re-
garded as of range and the corresponding error but
will be set.
S Transmission fluid temperature is not between
–40°C (–40°F) and 150°C (302°F).
Action Taken When The DTC Sets
S No lamp control required but diagnostic information
should be stored immediately when malfunction is
defected.
S TCM assumes the transaxle fluid temperature is
60°C.
S No influence on drivability.
Conditions for Clearing the MIL/DTC
S Using a scan tool can clear history DTCs.
Diagnostic Aids
S When DTC P0710 sets, the possible cause of fault
could be Transmission Temperature Sensor.

5A1 – 90IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTC P0710 – Transmission Fluid Temperature Sensor Circuit
Malfunction
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. Record then clear DTC(s) and turn the ignition
OFF, then turn the ignition ON.
4. Select TFT on the scan tool.
5. Drive the vehicle and observe the scan tool for
either of the flowing conditions:
6. The TFT does not change more than 1.5°C
(34.7°F) in 80 seconds since start–up.
7. The TFT changes more than 20°C (68°F) with-
in 7 seconds (unrealistic change).
Did either of the fail conditions occur?–Go to Step 3Go to ”Diag-
nostic Aids”
31. Turn the ignition OFF.
2. Disconnect the transaxle wiring connector.
3. Measure the resistance between terminals 9
and 4 of the transaxle wiring connector.
Is the resistance within the values shown?TFT 25°C
990 ΩGo to Step 7Go to Step 4
41. Remove the oil pan.
2. Disconnect the wiring connector of the trans-
axle fluid temperature sensor.
3. Inspect the automatic transaxle wiring harness
for an intermittent short or open.
Was a problem found?–Go to Step 5Go to Step 6
5Replace the automatic transaxle wiring harness.
Is the replacement complete?–System OK–
6Replace the TFT sensor.
Is the action complete?–System OK–
71. Disconnect the automatic transaxle wiring con-
nector and disconnect the wiring connector of
the TCM(transaxle control module).
2. Measure the resistance between terminal 4 of
the transaxle wiring connector and terminal B1
of the TCM wiring connector.
3. Measure the resistance between terminal 9 of
the transaxle wiring connector and terminal A4
of the TCM wiring connector.
Is the resistance within the values shown?0ΩGo to Step 9Go to Step 8
81. Inspect the automatic transaxle wiring harness
for an intermittent short to ground or open con-
dition.
2. Inspect the automatic TFT sensor wiring har-
ness for an intermittent short to ground or open
condition.
3. Repair the circuits if necessary.
Is the repair complete?–System OK–