2003 DAEWOO MATIZ display

ENGINE CONTROLS 1F–205
DAEWOO M-150 BL2
DTC P0406 – EEGR Pintle Position Sensor High 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. Turn the ignition switch to with the engine OFF.
2. Install the scan tool.
3. Command the electric exhaust gas recirculation
(EEGR) valve to the specified values.
Does the Actual EEGR Position follow the desired
EEGR position?
25%, 50%,
75%, 100%
Go to Step 19Go to Step 3
3
1. Turn the ignition switch to ON with the engine
OFF.
2. Disconnect the EEGR valve electrical connector.
3. With a digital voltmeter (DVM) connected to
ground, probe the 5volt reference circuit at
terminal 3 to the EEGR valve.
Does the DVM read near the specified value?
More than 5VGo to Step 4Go to Step 5
4
Jumper the 5 volt reference circuit to the signal
circuit at terminals 2 and 3.
Does the actual EEGR position display the specified
value ?
100%Go to Step 6Go to Step 7
5
1. Connect the test light to B+.
2. Probe the 5 volt reference circuit to the EEGR
valve.
Does the test light illuminate?
–
Go to Step 6Go to Step 7
6
Check the 5 volt reference and signal circuit for a
poor connection or proper terminal tension and
repair as necessary.
Is a repair necessary?
–
Go to Step 12Go to Step 7
7
1. Connect the test light to B+.
2. Probe the signal circuit at terminal 2 to the EEGR
valve.
Does the test light illuminate?
–
Go to Step 8Go to Step 9
8
Check for a high voltage in the EEGR valve 5 volt
reference circuit and repair as necessary.
Is a repair necessary?
–
Go to Step 12Go to Step 9
9Replace the EEGR valve
Is a replacement complete?–Go to Step 12–
10
Check for a high voltage in the EEGR valve signal
circuit and repair as necessary
Is a repair necessary?
–
Go to Step 12Go to Step 11
11Replace the engine control module(ECM).
Is a replacement complete?–Go to Step 12–
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 the DTC as specifiec in the supporting
text.
Does the scan tool indicate that this diagnostic ran
and passed?
–
Go to Step 13Go to Step 2

1F–206 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0406 – EEGR Pintle 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

ENGINE CONTROLS 1F–209
DAEWOO M-150 BL2
DTC P0420 – Catalyst Low Efficiency
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Was the check performed?
–
Go to Step 2
Go to
“On-Board
Diagnostic
System Check”
2
1. Install a scan tool to the Data link Connector
(DLC).
2. Turn the ignition ON.
Are any component Diagnostic Trouble Codes
(DTCs) set?
–Go to
Applicable DTC
table
Go to Step 3
3
1. Visually/physically check the following:
2. Exhaust system for a leak.
3. Heated Oxygen Sensor (HO2S).
Is a problem found?
–
Go to Step 4Go to Step 5
4Repair the exhaust system as needed.
Is the repair complete?–Go to Step 6–
5Replace the Three Way Catalytic Converter (TWC).
Is the repair complete?–Go to Step 6–
6
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 7Go to Step 2
7
Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to
Applicable DTC
table
System OK

ENGINE CONTROLS 1F–211
DAEWOO M-150 BL2

The EVAP system in unable to achieve or maintain
vacuum during the diagnostic test. The amount of
decay will vary within the fuel level.
Action Taken When The DTCs 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.
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
Although this DTC is considered a type. A diagnostic, it
acts like a type B diagnostic under certain conditions.
Whenever this diagnostic reports the system has
passed, or if the battery is disconnected, the diagnostic
must fail twice before setting a DTC. The initial failure is
not reported to the diagnostic executive or displayed on
a scan tool. A passing system always reports to the
diagnostic executive immediately.Check for the following conditions :

Missing or damaged fuel cap.

Missing or damaged O-rings at fuel vapor and EVAP
purge line canister fittings.

Cracked or punctured EVAP canister.

Damaged source vacuum line, EVAP purge line,
EVAP vent hose or fuel tank vapor line.

Poor connection at the ECM. Inspect the harness
connectors for the following conditions.

Backed-out terminals.

Improper mating.

Broken locks.

Improperly formed.

Damaged terminals.

Poor terminal-to-wire connection.

Damaged harness. Inspect the wiring harness to the
EVAP vent solenoid, EVAP canister purge valve, and
the fuel tank pressure sensor for an intermittent open
or short circuit.

Kinked, pinched or plugged vacuum source, EVAP
purge, or fuel tank vapor line. Verify that the lines are
not restricted.

1F–212 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0444 – EVAP Purge Control Circuit No Signal
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. Disconnect the evaporative emission (EVAP)
canister purge valve connector.
2. Connect a test light between the EVAP canister
purge valve connector terminal 2 and battery
positive.
Is the test light ON?
–
Go to Step 3Go to Step 5
3
1. Disconnect the ECM connector.
2. Connect a test light between the ECM connector
terminal 66 and ground.
Is the test light ON?
–
Go to Step 4Go to Step 6
4
1. Repair the line break in the wire between the
EVAP canister purge valve connector 1 and the
ECM connector terminal 66.
2. Clear any Diagnostic Trouble Codes (DTCs) from
the ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
5
1. Repair the line break in the wire between the
EVAP canister purge valve connector 2 and the
main relay connector terminal 87.
2. Clear any Diagnostic Trouble Codes (DTCs) from
the ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
6
1. Replace the ECM.
2. Perform the diagnostic system check.
Is the repair complete?
–
Go to Step 7
–
7
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 the DTC as specifiec in the supporting
text.
Does the scan tool indicate that this diagnostic ran
and passed?
–
Go to Step 7Go to Step 2
8
Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to
Applicable DTC
table
System OK

ENGINE CONTROLS 1F–215
DAEWOO M-150 BL2

The EVAP system in unable to achieve or maintain
vacuum during the diagnostic test. The amount of
decay will vary within the fuel level.
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.

Coolant fan turns ON.
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
Although this DTC is considered a type. A diagnostic, it
acts like a type B diagnostic under certain conditions.
Whenever this diagnostic reports the system has
passed, or if the battery is disconnected, the diagnostic
must fail twice before setting a DTC. The initial failure is
not reported to the diagnostic executive or displayed ona scan tool. A passing system always reports to the
diagnostic executive immediately.
Check for the following conditions :
Missing or damaged fuel cap.
Missing or damaged O-rings at fuel vapor and EVAP
purge line canister fittings.
Cracked or punctured EVAP canister.
Damaged source vacuum line, EVAP purge line, EVAP
vent hose or fuel tank vapor line.
Poor connection at the ECM. Inspect the harness con-
nectors for the following conditions.

Backed-out terminals.

Improper mating.

Broken locks.

Improperly formed.

Damaged terminals.

Poor terminal-to-wire connection.

Damaged harness. Inspect the wiring harness to the
EVAP vent solenoid, EVAP canister purge valve, and
the fuel tank pressure sensor for an intermittent open
or short circuit.

Kinked, pinched or plugged vacuum source, EVAP
purge, or fuel tank vapor line. Verify that the lines are
not restricted.
DTC P0445 – EVAP Purge Control Circuit Fault
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. Disconnect the evaporative emission (EVAP)
canister purge valve connector.
2. Measure the resistance of the EVAP canister
purge valve connector.
Does the resistance measure near within the value
specified?
30ΩGo to Step 3Go to Step 9
3
Connect a test light between EVAP canister purge
valve connector terminal 2 and ground.
Is the test light ON?
–
Go to Step 4Go to Step 6
4
1. Disconnect the ECM connector.
2. Connect a test light between the ECM connector
terminal 66 and ground.
Is the test light ON?
–
Go to Step 5Go to Step 7

1F–216 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0445 – EVAP Purge Control Circuit Fault (Cont’d)
StepActionValue(s)YesNo
5
1. Repair the high voltage or ground in the wire
between the EVAP canister purge valve
connector terminal 1 and the ECM connector
terminal 66.
2. Clear any Diagnostic Trouble Codes (DTCs) from
the ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
6
1. Disconnect the EVAP canister purge valve
connector.
2. Connect a test light between the EVAP canister
purge valve connector terminal 2 and battery.
Is the test light ON?
–
Go to Step 7Go to Step 9
7
1. Disconnect the ECM connector.
2. Connect a test light between the ECM connector
terminal 65 and ground.
Is the test light ON?
–
Go to Step 8Go to Step 10
8
1. Repair the low voltage in the wire between the
EVAP canister purge valve connector terminal 1
and the ECM connector terminal 66.
2. Clear any Diagnostic Trouble Codes (DTCs) from
the ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
9
1. Replace the EVAP canister purge valve.
2. Clear any Diagnostic Trouble Codes (DTCs) from
the ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
Go to Step 10
–
10
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 the DTC as specifiec in the supporting
text.
Does the scan tool indicate that this diagnostic ran
and passed?
–
Go to Step 11Go to Step 2
11
Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to
Applicable DTC
table
System OK

1F–220 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0462 – Fuel Level Sensor Low Voltage (Cont’d)
StepActionValue(s)YesNo
12
Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?
–
Go to
Applicable DTC
table
System OK