Daewoo MATIZ Service Manual page 214

1F – 116 ENGINE CONTROLS
DTC P1230 – Fuel Pump Relay Low Voltage (Cont'd)
Step
1. Repair the wire between the fuel pump relay
connector terminal 66 and the ignition key ON
(IGN1).
2. Install the fuel pump relay.
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3. Turn the ignition OFF for 10 seconds.
4. Clear any DTCs from ECM.
5. Turn the ignition switch to ON.
Does the fuel pump operate?
1. Repair the wire between the fuel pump relay
connector terminal 85 and the ECM connector
terminal 10.
2. Install the fuel pump relay.
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3. Turn the ignition OFF for 10 seconds.
4. Clear any DTCs from ECM.
5. Turn the ignition switch to ON.
Does the fuel pump operate?
1. Replace the ECM.
2. Turn the ignition OFF for 10 seconds.
13 3. Clear any DTCs from ECM.
4. Turn the ignition switch to ON.
Does the fuel pump operate?
1. Using the scan tool, clear the DTCs.
2. Start the engine and idle at normal operating
temperature.
3. Operate the vehicle within the conditions for
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setting this DTC ad specified in the supporting
text.
Does the scan tool indicate that this diagnostic has
run and passed?
Check if any additional DTCs are set.
15
Are any DTCs displayed that have not been
diagnosed?
Action Value(s) Yes
2.55 seconds System OK
2.55 seconds System OK
2.55 seconds System OK
–
Go to Step 15
Go to
applicable DTC
–
table
No
Go to Step 13
Go to Step 13
Go to Step 14
Go to Step 2
System OK
DAEWOO M-150 BL2