Daewoo MATIZ Service Manual page 235

Step
Repair the open or the shorted fuel injector driver
circuit.
18
Is the repair complete?
Repair the open ignition feed circuit between the fuel
injector harness connector and the fuel injector
19
connector.
Is the repair complete?
Measure the resistance of the spark plug cable that
the spark plug tester did not spark.
20
Is the resistance of the spark plug cable less than
the specified value?
Inspect the Engine Control Module (ECM) connector
and connections.
21
Are the connections OK?
Check the affected cylinders ignition control circuit
for an open or short and repair as necessary.
22
Is the repair complete?
Repair the connector or connections.
23
Is the repair complete?
1. Turn the ignition OFF.
24 2. Replace the ECM.
Is the repair complete?
Replace the spark plug cable.
25
Is the repair complete?
Replace the faulty ignition coil.
26
Is the repair complete?
1. Using the scan tool, clear the DTCs.
2. Start the engine and idle at normal operating
temperature.
27
3. Operate the vehicle within the conditions for
setting this DTC as supported in the text.
Does the scan tool indicate that this diagnostic ran
and passed?
Check if any additional DTCs are set.
28
Are any DTCs displayed that have not been
diagnosed?
DAEWOO M-150 BL2
DTC P0300 – Multiple Cylinder Misfire (Cont'd)
Action
ENGINE CONTROLS 1F – 137
Value(s) Yes
–
Go to Step 27
–
Go to Step 27
Go to Step 21
30000Ω
–
Go to Step 22
–
Go to Step 27
–
Go to Step 27
–
Go to Step 27
–
Go to Step 27
–
Go to Step 27
–
Go to Step 28
Go to
Applicable DTC
–
table
No
–
–
Go to Step 25
Go to Step 23
Go to Step 26
–
–
–
Go to Step 24
Go to Step 2
System OK