Daewoo CIELO EURO III Manual page 247

Engine Cooling Fan Circuit Check – With A/C (Cont'd)
Step
1. Connect the main cooling fan connector.
2. Connect the cooling fan relay B.
3. Connect the cooling fan control relay.
4. Disconnect the ECM connector.
5. Connect a fused jumper between the ECM
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connector terminal K28 and ground.
6. Connect a fused jumper between the ECM
connector terminal K12 and ground.
7. Turn the ignition ON.
Do the cooling fans run at high speed?
1. Turn the ignition OFF.
2. Check for an open wire between the cooling fan
38 relay B connector terminal 85 and the ECM
connector terminal K12.
Is the problem found?
1. Disconnect the cooling fan relay B.
2. Connect a test light between the cooling fan
39 relay B connector terminal 87 and battery
positive.
Is the test light on?
1. Disconnect the ECM connector 2
2. Connect a fused jumper between the ECM
connector terminal K12 and ground.
3. Disconnect the cooling fan control relay.
40
4. Connect a test light between the cooling fan
control relay connector terminal 85 and battery
positive.
Is the test light on?
1. Connect the cooling fan control relay.
2. Connect a fused jumper between the ECM
connector terminal K12 and ground.
3. Disconnect the cooling fan relay B.
4. Connect a fused jumper between the cooling fan
relay B connector terminals 30 and 87.
41
5. Disconnect the low speed cooling fan relay.
6. Connect a fused jumper between the low speed
cooling fan relay connector terminals 30 and 87.
7. Turn the ignition ON.
Do the cooling fans run at high speed?
1. Turn the ignition OFF.
2. Connect a fused jumper between the ECM
connector terminal C12 and ground.
3. Disconnect the cooling fan control relay.
4. Connect a fused jumper between the cooling fan
42
control relay connector terminals 30 and 87.
5. Connect a fused jumper between the low speed
cooling fan relay connector terminals 30 and 87.
6. Turn the ignition ON.
Do the cooling fans run at high speed?
DAEWOO T-154 BL2,3
Action
ENGINE CONTROLS 1F – 79
Value(s) Yes
–
Go to Step 30
–
Go to Step 22
–
Go to Step 40
–
Go to Step 41
–
Go to Step 43
–
Go to Step 27
No
Go to Step 38
Go to Step 39
Go to Step 48
Go to Step 49
Go to Step 42
–