2003 DAEWOO MATIZ display

ENGINE CONTROLS 1F–33
DAEWOO M-150 BL2
Malfunction Indicator Lamp On Steady
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Is the check complete.
–
Go to Step 2
Go to “Euro
On-Board
Diagnostic
System Check”
2
1. Turn the ignition OFF.
2. Install the scan tool.
3. Command the Malfunction Indicator Lamp (MIL)
on and off.
Does the MIL turn on and off when commanded?
–
Go to Step 7Go to Step 3
3
1. Turn the ignition OFF.
2. Disconnect the engine control module (ECM)
connector.
3. Turn the ignition ON.
Is the MIL off?
–
Go to Step 6Go to Step 4
4
Check the MIL control circuit for a short to ground
and repair as needed.
Is a repair necessary?
–
Go to Step 7Go to Step 5
5
Replace the instrument panel cluster. Refer to
Section 9E, Instrumentation/Driver Information.
Is the repair complete?
–
Go to Step 7
–
6Replace the ECM.
Is the repair complete?–Go to Step 7–
7
1. Using the scan tool, clear the Diagnostic Trouble
Codes(DTCs).
2. Attempt to start the engine.
Does the engine start and continue to run?
–
Go to Step 8Go to Step 1
8
Allow the engine to idle until normal operating
temperature is reached.
Check if any DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to applicable
DTC table
System OK

ENGINE CONTROLS 1F–53
DAEWOO M-150 BL2
Data Link Connector Diagnosis
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Was the check performed?
–
Go to Step 2
Go to “Euro
On-Board
Diagnostic
System Check.
2
With a test light connected to the ground, probe the
Data Link Connector (DLC) battery feed terminal 16.
Is the test light on?
–
Go to Step 4Go to Step 3
3
Repair an open or short to ground in the DLC battery
feed circuit .
Is the repair complete?
–
Go to Step 4
–
4
With a test light connected to the battery, probe the
Data Link Connector (DLC) ground terminal 4 and 5.
Is the test light on?
–
Go to Step 6Go to Step 5
5Repair an open circuit .
Is the repair complete?–Go to Step 6–
6
1. Turn the ignition OFF.
2. Connect a scan tool to the Data Link Connector
(DLC).
3. Turn the ignition ON.
Does the scan tool power up?
–
Go to Step 8Go to Step 7
7
Check for damages in the terminal of DLC and scan
tool, and repair as needed.
Is the repair complete?
–
Go to Step 8
–
8
Using a scan tool, request engine data of Engine
Control Module (ECM).
Does the scan tool display any data?
–
Go to Step 12Go to Step 9
9
Install the scan tool on another vehicle and check for
proper operation.
Does the scan tool work properly on a different
vehicle.
–
Go to Step 11Go to Step 10
10
The scan tool is malfunctioning.
Refer to the scan tool’s manual for repair.
Is the repair complete?
–
Go to Step 12
–
11
Repair communication circuit between ECM and
DLC.
Is the repair complete?
–
Go to Step 12
–
12
1. Using a scan tool, clear the Diagnostic Trouble
Codes(DTCs).
2. Attempt to start the engine.
Does the engine and continue to run?
–
Go to Step 13Go to Step 1
13
1. Allow the engine to idle until normal operation
temperature reached.
2. Check if any DTCs are set?
Are any DTCs displayed that have not been
diagnosed?
–
Go to applicable
DTC table
System OK

ENGINE CONTROLS 1F–59
DAEWOO M-150 BL2
If the connections are OK monitor the manifold absolute
pressure (MAP) sensor signal voltage while moving re-
lated connectors and the wiring harness. If the failure isinduced, the display on the scan tool will change. This
may help to isolate the location of an intermittent mal-
function.
DTC P0107 – Manifold Absolute Pressure Sensor Low Voltage
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Is the system check complete?
–
Go to Step 2
Go to
“On-Board
Diagnostic
System Check”
2
1. Connect the scan tool to the data link connector
(DLC).
2. Turn the ignition switch to ON.
Does the scan tool show the manifold absolute
pressure (MAP) sensor voltage above the value
specified?
4VGo to Step 3Go to Step 4
3
1. Disconnect the vacuum line from the MAP
sensor.
2. Apply 88kPA (20in.of Hg) of vacuum to the MAP
sensor.
Does the scan tool show the MAP sensor voltage
within the value specified?
1.0–1.5V
Go to
“Diagnostic
Aids”
Go to Step 4
4
1. Turn the ignition switch to LOCK.
2. Disconnect the MAP sensor connector.
3. Turn the ignition switch to ON.
4. Measure the voltage between the MAP sensor
connector terminals A and C.
Does the voltage measure within the value
specified?
4.5–5.0VGo to Step 5Go to Step 6
5
Connect a fused jumper between the MAP sensor
connector terminals B and C.
Does the scan tool show the MAP sensor voltage
above the value specified?
4VGo to Step 11Go to Step 9
6
Measure the voltage between the MAP sensor
connector terminal A and ground.
Does the voltage measure within the value
specified?
4.5–5.0VGo to Step 7Go to Step 8
7
1. Turn the ignition switch to LOCK.
2. Check for open wires between the MAP sensor
connector terminal A and the ECM connector
terminal 78.
Is the problem found?
–
Go to Step 10Go to Step 12
8
1. Turn the ignition switch to LOCK.
2. Check for an open or short to ground in the wire
between the MAP sensor connector terminal C
and the ECM connector terminal 12.
Is the problem found ?
–
Go to Step 10Go to Step 12
9
1. Turn the ignition switch to LOCK.
2. Check for an open or short to ground in the wire
between the MAP sensor connector terminal B
and the ECM connector terminal 73.
Is the problem found ?
–
Go to Step 10Go to Step 12

1F–62 ENGINE CONTROLS
DAEWOO M-150 BL2
MAA1F060
DIAGNOSTIC TROUBLE CODE (DTC) – P0108 MANIFOLD ABSOLUTE
PRESSURE SENSOR HIGH VOLTAGE
Circuit Description
The engine control module (ECM) uses the Manifold Ab-
solute Pressure (MAP) sensor to control the fuel deliv-
ery and the ignition timing. The MAP sensor measures
the changes in the intake manifold pressure, which re-
sults from engine load (intake manifold vacuum) and the
rpm changes; and converts these into voltage outputs.
The ECM sends a 5 volt-reference voltage to the MAP
sensor. As the manifold pressure changes, the output
voltage of the MAP sensor also changes. By monitoring
the MAP sensor output voltage, the ECM knows the
manifold pressure. A low-pressure (low voltage) output
voltage will be about 1.0 to 1.5 volts at idle, while higher
pressure (high voltage) output voltage will be about 4.5
to 4.8 at wide open throttle (WOT). The MAP sensor is
metric pressure, allowing the ECM to make adjustments
for different altitudes.
Conditions for Setting the DTC

This DTC can be stored in “key-on” status.

Engine speed is greater than 2,000rpm.

No throttle position sensor (TPS) fail conditions pres-
ent.

The MAP is greater than 600m bar.

A high voltage condition exists.
Action Taken when the DTC Sets

The Malfunction Indicator Lamp (MIL) will illuminate.

The ECM will record operating conditions at the time
the diagnostic fails. This information will be stored in
the Freeze Frame and Failure Records buffers.
A history DTC is stored.

The ECM will substitutes a fixed MAP value and use
TP to control the fuel delivery (the scan tool will not
show defaulted)
Conditions for Clearing the MIL/DTC

The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.

A history DTC will clear after 40 consecutive warm-up
cycles without a fault.

DTC(s) can be cleared by using the scan tool.
Diagnostic Aids
With the ignition ON and the engine stopped, the man-
ifold pressure is equal to atmosphere pressure and the
signal voltage will be high.
The ECM as an indication of vehicle altitude uses this
information. Comparison of this reading with a known
good vehicle with the same sensor is a good way to
check the accuracy of a suspect sensor. Readings
should be the same ±0.4volt.
If a DTC P 0108 is intermittent, refer to “manifold abso-
lute pressure check” in this Section for further diagnosis.
If the connections are OK monitor the manifold absolute
pressure(MAP) sensor signal voltage while moving re-
lated connectors and the wiring harness. If the failure is
induced, the display on the scan tool will change. This
may help to isolate the location of an intermittent mal-
function.

1F–76 ENGINE CONTROLS
DAEWOO M-150 BL2
MAA1F120
DIAGNOSTIC TROUBLE CODE (DTC) P0122
THROTTLE POSITION SENSOR LOW VOLTAGE
Circuit Description
The Engine Control Module (ECM) supplies a 5 volt ref-
erence voltage signal and a ground to the Throttle Posi-
tion (TP) sensor. The TP sensor sends a voltage signal
back to the ECM relative to the throttle plate opening.
The voltage signal will vary from approximately 0.33
volts at closed throttle, to over 4.3 volts at Wide Open
Throttle (WOT).
The TP signal is used by the ECM for fuel control and for
most of the ECM controlled outputs. The TP signal is
one of the most important inputs used by the ECM for
fuel control and most of the ECM controlled outputs.
Conditions for Setting the DTC

TP sensor voltage indicates a throttle voltage less
than 0.14 volts.
Action Taken When the DTC Sets

The Malfunction Indicator Lamp (MIL) will illuminate.

The ECM will record operating conditions at the time
the diagnostic fails. This information will be stored in
the Freeze Frame and Failure Records buffers.
A history DTC is stored.

The TP angle will default to 0% when the vehicle
speed is less than 3 km/h (2 mph) and 10% when the
vehicle speed is greater than 3 km/h (2 mph). The
scan tool will not display the default value.
Conditions for Clearing the MIL/DTC

The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.

A history DTC will clear after 40 consecutive warm-up
cycles without a fault.

DTC(s) can be cleared by using the scan tool.

Disconnecting the ECM battery feed for more than 10
seconds.
Diagnostic Aids
If the DTC P0122 cannot be duplicated, the information
included in the Freeze Frame data can be useful. Use a
scan tool information data to determine the status of the
DTC. If the dc occurs intermittently, using the Diagnostic
table may help isolate the problem.

1F–78 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0122 – Throttle Position Sensor Low Voltage (Cont’d)
StepActionValue(s)YesNo
12
1. Using the scan tool, clear the Diagnostic Trouble
Codes (DTCs).
2. Start the engine and idle at normal operating
temperature.
3. Operate the vehicle within the Conditions for
setting this DTC as specified in the supporting
text.
Does the scan tool indicate that this diagnostic has
run and passed?
–
Go to Step 13Go to Step 2
13
Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to
Applicable DTC
Table
System OK

1F–80 ENGINE CONTROLS
DAEWOO M-150 BL2
MAA1F120
DIAGNOSTIC TROUBLE CODE (DTC) P0123
THROTTLE POSITION SENSOR HIGH VOLTAGE
Circuit Description
The Engine Control Module (ECM) supplies a 5 volt ref-
erence voltage signal and a ground to the Throttle Posi-
tion (TP) sensor. The TP sensor sends a voltage signal
back to the ECM relative to the throttle plate opening.
The voltage signal will vary from approximately 0.33
volts at closed throttle, to over 4.3 volts at Wide Open
Throttle (WOT).
The TP signal is used by the ECM for fuel control and for
most of the ECM controlled outputs. The TP signal is
one of the most important inputs used by the ECM for
fuel control and most of the ECM controlled outputs.
Conditions for Setting the DTC

TP sensor voltage indicates a throttle voltage greater
than 4.9 volts.
Action Taken When the DTC Sets

The Malfunction Indicator Lamp (MIL) will illuminate.

The ECM will record operating conditions at the time
the diagnostic fails. This information will be stored in
the Freeze Frame and Failure Records buffers.

A history DTC is stored.

The TP angle will default to 0% when the vehicle
speed is less than 3 km/h (2 mph) and 10% when thevehicle speed is greater than 3 km/h (2 mph). The
scan tool will not display the default value.
Conditions for Clearing the MIL/DTC

The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.

A history DTC will clear after 40 consecutive warm-up
cycles without a fault.

DTC(s) can be cleared by using the scan tool.

Disconnecting the ECM battery feed for more than 10
seconds.
Diagnostic Aids
If the DTC P0123 cannot be duplicated, the information
included in the Freeze Frame data can be useful. Use a
scan tool information data to determine the status of the
DTC. If the dc occurs intermittently, using the Diagnostic
table may help isolate the problem.
With ignition ON and the throttle at closed position, the
voltage should read between 0.2 and 0.90 volts and in-
crease steadily to over 4.3 volts at WOT.
DTCs P0123 and P0113 stored at the same time could
be result of an open sensor ground circuit.

1F–82 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0123 – Throttle Position Sensor High Voltage (Cont’d)
StepActionValue(s)YesNo
13
Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to
Applicable DTC
Table
System OK