Daewoo MATIZ Service Manual page 147

Step
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
1
Was the check performed?
1. Check the fuses EF3 and EF10 in engine fuse
block.
2
2. Replace the fuse(s) as needed.
Is the fuse(s) OK?
1. Turn the ignition OFF.
2. Turn the A/C switch OFF. If equipped.
3. Connect a scan tool to the Data Link Connector
(DLC).
3
4. Start the engine.
5. The main cooling fan should run at low speed
when the coolant temperature reaches 96_C
(205_F).
Does the cooling fan run at low speed?
The cooling fans should run at high speed when the
coolant temperature reaches 100_C (212_F).
4
Do the cooling fans run at high speed?
1. Turn the ignition OFF.
2. Start the engine.
5
3. Turn the A/C switch ON.
Does the cooling fan runs at low speed?
1. Diagnose the A/C compressor clutch circuit.
2. Repair the A/C compressor clutch circuit as
6
needed.
Is the repair complete?
1. Turn the ignition OFF.
2. Start the engine.
3. Turn the A/C switch ON and raise the rpm.
7
4. The cooling fan should run at high speed when
the high side A/C pressure reaches 2068 kPa
(300 psi).
Do the cooling fans run at high speed?
1. Turn the ignition OFF.
2. Disconnect the cooling fan connector.
3. Turn the ignition ON.
8
4. Connect a test light between terminal 1 of cooling
fan connector and ground.
Is the test light on?
Connect a test light between terminal 2 of cooling
fan connector and battery positive.
9
Is the test light on?
Repair open circuit between terminal 2 of cooling fan
connector and ground.
10
Is the repair complete?
Check for a damaged terminals in main cooling fan
connector and repair it or replace the main cooling
11
fan.
Is the repair complete?
DAEWOO M-150 BL2
Engine Cooling Fan Circuit Check
Action
ENGINE CONTROLS 1F – 49
Value(s) Yes
–
Go to Step 2
–
Go to Step 3
–
Go to Step 4
–
Go to Step 5
–
Go to Step 7
–
System OK
–
System OK
–
Go to Step 9
–
Go to Step 11
–
System OK
–
System OK
No
Go to "Euro
On-Board
Diagnostic
System Check.
Go to
"Diagnostic
Aids"
Go to Step 8
Go to Step 19
Go to Step 6
–
–
Go to Step 12
Go to Step 10
–
–