1F–212 ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0444 – EVAP Purge Control Circuit No Signal
Step Action Value(s) Yes No
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 3 Go 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 4 Go 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 7 Go 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